Home » CEEFAX disks » telesoftware12.adl » 10-02-89/E\Info
10-02-89/E\Info
This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.
Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.
| Tape/disk: | Home » CEEFAX disks » telesoftware12.adl |
| Filename: | 10-02-89/E\Info |
| Read OK: | ✔ |
| File size: | 0BC7 bytes |
| Load address: | 0000 |
| Exec address: | FFFFFFFF |
File contents
Envelope Manipulation and Design System
This system is not intended to provide a full music creation environment
but is intended to simplify the use of the BBC's envelope command. With
14 different parameters to co-ordinate, the envelope command, although
powerful, is difficult to use. This program can be thought of as a front
end to the command.
The program is based around a central display screen giving details of
any envelopes being played, menu options and the current envelope's
settings.
Normally the BBC allots memory for 4 envelopes but this can be increased
to 16 if the cassette, RS423 and speech systems are not used. Rather than
place these limitations on the system we decided to only use the first 4
envelopes. This is no great limitation since 4 envelopes can be
developed, saved and another four loaded and developed. When in operation
all four envelopes are held in memory but one is classed as the current
envelope. All editing operations carried out occur on the current
envelope, the current envelope can be changed by using option C on the
menu (see below).
As well as the 14 parameters which are normally held with the envelope
each envelope can be named, this allows some idea of the envelopes use to
be gleaned.
The menu system is very simple, when the program is run the menu has 13
options, simply pressing the key corresponding to each options will take
you to it. The options are:
C - Change envelope this allows the current envelope to be changed.
N - Change name this allows a name to be entered for the current envelope
D - Display envelopes this displays the settings for all four envelopes,
in a form that can easily be entered as a BASIC command. Output can be
directed to the printer.
S - Play envelopes this allows am envelope to be played
T - Alter Time this allows the time (duration) of an envelope to be
changed.
P - Alter pitch this allows the pitch of an envelope to be changed, as
the BASIC command it has three sections (PI1, PI2 and PI3 representing
the pitch, these are plotted against the number of steps in each PN1, PN2
and PN3)
A - Alter amplitude, this uses two graphs one to represent AA, AD, AS and
AR, and the other graph to plot ALA and ALD.
K - Kill a sound, this is the opposite to the play option
E - Copy envelope this allows one envelopes settings to be copied to
another envelope, the settings are retained in the original
B - BASIC input, this allows an envelope to be inputted as if it were a
BASIC command - with the added help of telling you the range of values
possible.
I - Save and Load
* - OS command
Q - Quit
With most of the options detailed, when a value is requested pressing
RETURN on it's own will leave the value as it was.
Although we would like to go into detail on envelope design the space
here does not allow us, in any case their are many good books on sound
commands on the BBC. The BBC User Guide also gives a (simple)
introduction to sound and envelopes, see pages 180, 244 and 347.
00000000 0d 20 20 20 20 20 20 20 20 20 20 20 20 20 20 45 |. E| 00000010 6e 76 65 6c 6f 70 65 20 4d 61 6e 69 70 75 6c 61 |nvelope Manipula| 00000020 74 69 6f 6e 20 61 6e 64 20 44 65 73 69 67 6e 20 |tion and Design | 00000030 53 79 73 74 65 6d 0d 0d 54 68 69 73 20 73 79 73 |System..This sys| 00000040 74 65 6d 20 69 73 20 6e 6f 74 20 69 6e 74 65 6e |tem is not inten| 00000050 64 65 64 20 74 6f 20 70 72 6f 76 69 64 65 20 61 |ded to provide a| 00000060 20 66 75 6c 6c 20 6d 75 73 69 63 20 63 72 65 61 | full music crea| 00000070 74 69 6f 6e 20 65 6e 76 69 72 6f 6e 6d 65 6e 74 |tion environment| 00000080 0d 62 75 74 20 69 73 20 69 6e 74 65 6e 64 65 64 |.but is intended| 00000090 20 74 6f 20 73 69 6d 70 6c 69 66 79 20 74 68 65 | to simplify the| 000000a0 20 75 73 65 20 6f 66 20 74 68 65 20 42 42 43 27 | use of the BBC'| 000000b0 73 20 65 6e 76 65 6c 6f 70 65 20 63 6f 6d 6d 61 |s envelope comma| 000000c0 6e 64 2e 20 57 69 74 68 0d 31 34 20 64 69 66 66 |nd. With.14 diff| 000000d0 65 72 65 6e 74 20 70 61 72 61 6d 65 74 65 72 73 |erent parameters| 000000e0 20 74 6f 20 63 6f 2d 6f 72 64 69 6e 61 74 65 2c | to co-ordinate,| 000000f0 20 74 68 65 20 65 6e 76 65 6c 6f 70 65 20 63 6f | the envelope co| 00000100 6d 6d 61 6e 64 2c 20 61 6c 74 68 6f 75 67 68 0d |mmand, although.| 00000110 70 6f 77 65 72 66 75 6c 2c 20 69 73 20 64 69 66 |powerful, is dif| 00000120 66 69 63 75 6c 74 20 74 6f 20 75 73 65 2e 20 54 |ficult to use. T| 00000130 68 69 73 20 70 72 6f 67 72 61 6d 20 63 61 6e 20 |his program can | 00000140 62 65 20 74 68 6f 75 67 68 74 20 6f 66 20 61 73 |be thought of as| 00000150 20 61 20 66 72 6f 6e 74 0d 65 6e 64 20 74 6f 20 | a front.end to | 00000160 74 68 65 20 63 6f 6d 6d 61 6e 64 2e 0d 0d 54 68 |the command...Th| 00000170 65 20 70 72 6f 67 72 61 6d 20 69 73 20 62 61 73 |e program is bas| 00000180 65 64 20 61 72 6f 75 6e 64 20 61 20 63 65 6e 74 |ed around a cent| 00000190 72 61 6c 20 64 69 73 70 6c 61 79 20 73 63 72 65 |ral display scre| 000001a0 65 6e 20 67 69 76 69 6e 67 20 64 65 74 61 69 6c |en giving detail| 000001b0 73 20 6f 66 0d 61 6e 79 20 65 6e 76 65 6c 6f 70 |s of.any envelop| 000001c0 65 73 20 62 65 69 6e 67 20 70 6c 61 79 65 64 2c |es being played,| 000001d0 20 6d 65 6e 75 20 6f 70 74 69 6f 6e 73 20 61 6e | menu options an| 000001e0 64 20 74 68 65 20 63 75 72 72 65 6e 74 20 65 6e |d the current en| 000001f0 76 65 6c 6f 70 65 27 73 0d 73 65 74 74 69 6e 67 |velope's.setting| 00000200 73 2e 0d 0d 4e 6f 72 6d 61 6c 6c 79 20 74 68 65 |s...Normally the| 00000210 20 42 42 43 20 61 6c 6c 6f 74 73 20 6d 65 6d 6f | BBC allots memo| 00000220 72 79 20 66 6f 72 20 34 20 65 6e 76 65 6c 6f 70 |ry for 4 envelop| 00000230 65 73 20 62 75 74 20 74 68 69 73 20 63 61 6e 20 |es but this can | 00000240 62 65 20 69 6e 63 72 65 61 73 65 64 0d 74 6f 20 |be increased.to | 00000250 31 36 20 69 66 20 74 68 65 20 63 61 73 73 65 74 |16 if the casset| 00000260 74 65 2c 20 52 53 34 32 33 20 61 6e 64 20 73 70 |te, RS423 and sp| 00000270 65 65 63 68 20 73 79 73 74 65 6d 73 20 61 72 65 |eech systems are| 00000280 20 6e 6f 74 20 75 73 65 64 2e 20 52 61 74 68 65 | not used. Rathe| 00000290 72 20 74 68 61 6e 0d 70 6c 61 63 65 20 74 68 65 |r than.place the| 000002a0 73 65 20 6c 69 6d 69 74 61 74 69 6f 6e 73 20 6f |se limitations o| 000002b0 6e 20 74 68 65 20 73 79 73 74 65 6d 20 77 65 20 |n the system we | 000002c0 64 65 63 69 64 65 64 20 74 6f 20 6f 6e 6c 79 20 |decided to only | 000002d0 75 73 65 20 74 68 65 20 66 69 72 73 74 20 34 0d |use the first 4.| 000002e0 65 6e 76 65 6c 6f 70 65 73 2e 20 54 68 69 73 20 |envelopes. This | 000002f0 69 73 20 6e 6f 20 67 72 65 61 74 20 6c 69 6d 69 |is no great limi| 00000300 74 61 74 69 6f 6e 20 73 69 6e 63 65 20 34 20 65 |tation since 4 e| 00000310 6e 76 65 6c 6f 70 65 73 20 63 61 6e 20 62 65 0d |nvelopes can be.| 00000320 64 65 76 65 6c 6f 70 65 64 2c 20 73 61 76 65 64 |developed, saved| 00000330 20 61 6e 64 20 61 6e 6f 74 68 65 72 20 66 6f 75 | and another fou| 00000340 72 20 6c 6f 61 64 65 64 20 61 6e 64 20 64 65 76 |r loaded and dev| 00000350 65 6c 6f 70 65 64 2e 20 57 68 65 6e 20 69 6e 20 |eloped. When in | 00000360 6f 70 65 72 61 74 69 6f 6e 0d 61 6c 6c 20 66 6f |operation.all fo| 00000370 75 72 20 65 6e 76 65 6c 6f 70 65 73 20 61 72 65 |ur envelopes are| 00000380 20 68 65 6c 64 20 69 6e 20 6d 65 6d 6f 72 79 20 | held in memory | 00000390 62 75 74 20 6f 6e 65 20 69 73 20 63 6c 61 73 73 |but one is class| 000003a0 65 64 20 61 73 20 74 68 65 20 63 75 72 72 65 6e |ed as the curren| 000003b0 74 0d 65 6e 76 65 6c 6f 70 65 2e 20 41 6c 6c 20 |t.envelope. All | 000003c0 65 64 69 74 69 6e 67 20 6f 70 65 72 61 74 69 6f |editing operatio| 000003d0 6e 73 20 63 61 72 72 69 65 64 20 6f 75 74 20 6f |ns carried out o| 000003e0 63 63 75 72 20 6f 6e 20 74 68 65 20 63 75 72 72 |ccur on the curr| 000003f0 65 6e 74 0d 65 6e 76 65 6c 6f 70 65 2c 20 74 68 |ent.envelope, th| 00000400 65 20 63 75 72 72 65 6e 74 20 65 6e 76 65 6c 6f |e current envelo| 00000410 70 65 20 63 61 6e 20 62 65 20 63 68 61 6e 67 65 |pe can be change| 00000420 64 20 62 79 20 75 73 69 6e 67 20 6f 70 74 69 6f |d by using optio| 00000430 6e 20 43 20 6f 6e 20 74 68 65 0d 6d 65 6e 75 20 |n C on the.menu | 00000440 28 73 65 65 20 62 65 6c 6f 77 29 2e 0d 0d 41 73 |(see below)...As| 00000450 20 77 65 6c 6c 20 61 73 20 74 68 65 20 31 34 20 | well as the 14 | 00000460 70 61 72 61 6d 65 74 65 72 73 20 77 68 69 63 68 |parameters which| 00000470 20 61 72 65 20 6e 6f 72 6d 61 6c 6c 79 20 68 65 | are normally he| 00000480 6c 64 20 77 69 74 68 20 74 68 65 20 65 6e 76 65 |ld with the enve| 00000490 6c 6f 70 65 0d 65 61 63 68 20 65 6e 76 65 6c 6f |lope.each envelo| 000004a0 70 65 20 63 61 6e 20 62 65 20 6e 61 6d 65 64 2c |pe can be named,| 000004b0 20 74 68 69 73 20 61 6c 6c 6f 77 73 20 73 6f 6d | this allows som| 000004c0 65 20 69 64 65 61 20 6f 66 20 74 68 65 20 65 6e |e idea of the en| 000004d0 76 65 6c 6f 70 65 73 20 75 73 65 20 74 6f 0d 62 |velopes use to.b| 000004e0 65 20 67 6c 65 61 6e 65 64 2e 20 0d 0d 54 68 65 |e gleaned. ..The| 000004f0 20 6d 65 6e 75 20 73 79 73 74 65 6d 20 69 73 20 | menu system is | 00000500 76 65 72 79 20 73 69 6d 70 6c 65 2c 20 77 68 65 |very simple, whe| 00000510 6e 20 74 68 65 20 70 72 6f 67 72 61 6d 20 69 73 |n the program is| 00000520 20 72 75 6e 20 74 68 65 20 6d 65 6e 75 20 68 61 | run the menu ha| 00000530 73 20 31 33 0d 6f 70 74 69 6f 6e 73 2c 20 73 69 |s 13.options, si| 00000540 6d 70 6c 79 20 70 72 65 73 73 69 6e 67 20 74 68 |mply pressing th| 00000550 65 20 6b 65 79 20 63 6f 72 72 65 73 70 6f 6e 64 |e key correspond| 00000560 69 6e 67 20 74 6f 20 65 61 63 68 20 6f 70 74 69 |ing to each opti| 00000570 6f 6e 73 20 77 69 6c 6c 20 74 61 6b 65 0d 79 6f |ons will take.yo| 00000580 75 20 74 6f 20 69 74 2e 20 54 68 65 20 6f 70 74 |u to it. The opt| 00000590 69 6f 6e 73 20 61 72 65 3a 0d 0d 43 20 2d 20 43 |ions are:..C - C| 000005a0 68 61 6e 67 65 20 65 6e 76 65 6c 6f 70 65 20 74 |hange envelope t| 000005b0 68 69 73 20 61 6c 6c 6f 77 73 20 74 68 65 20 63 |his allows the c| 000005c0 75 72 72 65 6e 74 20 65 6e 76 65 6c 6f 70 65 20 |urrent envelope | 000005d0 74 6f 20 62 65 20 63 68 61 6e 67 65 64 2e 0d 0d |to be changed...| 000005e0 4e 20 2d 20 43 68 61 6e 67 65 20 6e 61 6d 65 20 |N - Change name | 000005f0 74 68 69 73 20 61 6c 6c 6f 77 73 20 61 20 6e 61 |this allows a na| 00000600 6d 65 20 74 6f 20 62 65 20 65 6e 74 65 72 65 64 |me to be entered| 00000610 20 66 6f 72 20 74 68 65 20 63 75 72 72 65 6e 74 | for the current| 00000620 20 65 6e 76 65 6c 6f 70 65 0d 0d 44 20 2d 20 44 | envelope..D - D| 00000630 69 73 70 6c 61 79 20 65 6e 76 65 6c 6f 70 65 73 |isplay envelopes| 00000640 20 74 68 69 73 20 64 69 73 70 6c 61 79 73 20 74 | this displays t| 00000650 68 65 20 73 65 74 74 69 6e 67 73 20 66 6f 72 20 |he settings for | 00000660 61 6c 6c 20 66 6f 75 72 20 65 6e 76 65 6c 6f 70 |all four envelop| 00000670 65 73 2c 0d 69 6e 20 61 20 66 6f 72 6d 20 74 68 |es,.in a form th| 00000680 61 74 20 63 61 6e 20 65 61 73 69 6c 79 20 62 65 |at can easily be| 00000690 20 65 6e 74 65 72 65 64 20 61 73 20 61 20 42 41 | entered as a BA| 000006a0 53 49 43 20 63 6f 6d 6d 61 6e 64 2e 20 4f 75 74 |SIC command. Out| 000006b0 70 75 74 20 63 61 6e 20 62 65 0d 64 69 72 65 63 |put can be.direc| 000006c0 74 65 64 20 74 6f 20 74 68 65 20 70 72 69 6e 74 |ted to the print| 000006d0 65 72 2e 0d 0d 53 20 2d 20 50 6c 61 79 20 65 6e |er...S - Play en| 000006e0 76 65 6c 6f 70 65 73 20 74 68 69 73 20 61 6c 6c |velopes this all| 000006f0 6f 77 73 20 61 6d 20 65 6e 76 65 6c 6f 70 65 20 |ows am envelope | 00000700 74 6f 20 62 65 20 70 6c 61 79 65 64 0d 0d 54 20 |to be played..T | 00000710 2d 20 41 6c 74 65 72 20 54 69 6d 65 20 74 68 69 |- Alter Time thi| 00000720 73 20 61 6c 6c 6f 77 73 20 74 68 65 20 74 69 6d |s allows the tim| 00000730 65 20 28 64 75 72 61 74 69 6f 6e 29 20 6f 66 20 |e (duration) of | 00000740 61 6e 20 65 6e 76 65 6c 6f 70 65 20 74 6f 20 62 |an envelope to b| 00000750 65 0d 63 68 61 6e 67 65 64 2e 0d 0d 50 20 2d 20 |e.changed...P - | 00000760 41 6c 74 65 72 20 70 69 74 63 68 20 74 68 69 73 |Alter pitch this| 00000770 20 61 6c 6c 6f 77 73 20 74 68 65 20 70 69 74 63 | allows the pitc| 00000780 68 20 6f 66 20 61 6e 20 65 6e 76 65 6c 6f 70 65 |h of an envelope| 00000790 20 74 6f 20 62 65 20 63 68 61 6e 67 65 64 2c 20 | to be changed, | 000007a0 61 73 0d 74 68 65 20 42 41 53 49 43 20 63 6f 6d |as.the BASIC com| 000007b0 6d 61 6e 64 20 69 74 20 68 61 73 20 74 68 72 65 |mand it has thre| 000007c0 65 20 73 65 63 74 69 6f 6e 73 20 28 50 49 31 2c |e sections (PI1,| 000007d0 20 50 49 32 20 61 6e 64 20 50 49 33 20 72 65 70 | PI2 and PI3 rep| 000007e0 72 65 73 65 6e 74 69 6e 67 0d 74 68 65 20 70 69 |resenting.the pi| 000007f0 74 63 68 2c 20 74 68 65 73 65 20 61 72 65 20 70 |tch, these are p| 00000800 6c 6f 74 74 65 64 20 61 67 61 69 6e 73 74 20 74 |lotted against t| 00000810 68 65 20 6e 75 6d 62 65 72 20 6f 66 20 73 74 65 |he number of ste| 00000820 70 73 20 69 6e 20 65 61 63 68 20 50 4e 31 2c 20 |ps in each PN1, | 00000830 50 4e 32 0d 61 6e 64 20 50 4e 33 29 20 0d 0d 41 |PN2.and PN3) ..A| 00000840 20 2d 20 41 6c 74 65 72 20 61 6d 70 6c 69 74 75 | - Alter amplitu| 00000850 64 65 2c 20 74 68 69 73 20 75 73 65 73 20 74 77 |de, this uses tw| 00000860 6f 20 67 72 61 70 68 73 20 6f 6e 65 20 74 6f 20 |o graphs one to | 00000870 72 65 70 72 65 73 65 6e 74 20 41 41 2c 20 41 44 |represent AA, AD| 00000880 2c 20 41 53 20 61 6e 64 0d 41 52 2c 20 61 6e 64 |, AS and.AR, and| 00000890 20 74 68 65 20 6f 74 68 65 72 20 67 72 61 70 68 | the other graph| 000008a0 20 74 6f 20 70 6c 6f 74 20 41 4c 41 20 61 6e 64 | to plot ALA and| 000008b0 20 41 4c 44 2e 20 0d 0d 4b 20 2d 20 4b 69 6c 6c | ALD. ..K - Kill| 000008c0 20 61 20 73 6f 75 6e 64 2c 20 74 68 69 73 20 69 | a sound, this i| 000008d0 73 20 74 68 65 20 6f 70 70 6f 73 69 74 65 20 74 |s the opposite t| 000008e0 6f 20 74 68 65 20 70 6c 61 79 20 6f 70 74 69 6f |o the play optio| 000008f0 6e 0d 0d 45 20 2d 20 43 6f 70 79 20 65 6e 76 65 |n..E - Copy enve| 00000900 6c 6f 70 65 20 74 68 69 73 20 61 6c 6c 6f 77 73 |lope this allows| 00000910 20 6f 6e 65 20 65 6e 76 65 6c 6f 70 65 73 20 73 | one envelopes s| 00000920 65 74 74 69 6e 67 73 20 74 6f 20 62 65 20 63 6f |ettings to be co| 00000930 70 69 65 64 20 74 6f 0d 61 6e 6f 74 68 65 72 20 |pied to.another | 00000940 65 6e 76 65 6c 6f 70 65 2c 20 74 68 65 20 73 65 |envelope, the se| 00000950 74 74 69 6e 67 73 20 61 72 65 20 72 65 74 61 69 |ttings are retai| 00000960 6e 65 64 20 69 6e 20 74 68 65 20 6f 72 69 67 69 |ned in the origi| 00000970 6e 61 6c 20 0d 0d 42 20 2d 20 42 41 53 49 43 20 |nal ..B - BASIC | 00000980 69 6e 70 75 74 2c 20 74 68 69 73 20 61 6c 6c 6f |input, this allo| 00000990 77 73 20 61 6e 20 65 6e 76 65 6c 6f 70 65 20 74 |ws an envelope t| 000009a0 6f 20 62 65 20 69 6e 70 75 74 74 65 64 20 61 73 |o be inputted as| 000009b0 20 69 66 20 69 74 20 77 65 72 65 20 61 0d 42 41 | if it were a.BA| 000009c0 53 49 43 20 63 6f 6d 6d 61 6e 64 20 2d 20 77 69 |SIC command - wi| 000009d0 74 68 20 74 68 65 20 61 64 64 65 64 20 68 65 6c |th the added hel| 000009e0 70 20 6f 66 20 74 65 6c 6c 69 6e 67 20 79 6f 75 |p of telling you| 000009f0 20 74 68 65 20 72 61 6e 67 65 20 6f 66 20 76 61 | the range of va| 00000a00 6c 75 65 73 0d 70 6f 73 73 69 62 6c 65 2e 20 0d |lues.possible. .| 00000a10 0d 49 20 2d 20 53 61 76 65 20 61 6e 64 20 4c 6f |.I - Save and Lo| 00000a20 61 64 0d 0d 2a 20 2d 20 4f 53 20 63 6f 6d 6d 61 |ad..* - OS comma| 00000a30 6e 64 20 0d 0d 51 20 2d 20 51 75 69 74 0d 0d 0d |nd ..Q - Quit...| 00000a40 57 69 74 68 20 6d 6f 73 74 20 6f 66 20 74 68 65 |With most of the| 00000a50 20 6f 70 74 69 6f 6e 73 20 64 65 74 61 69 6c 65 | options detaile| 00000a60 64 2c 20 77 68 65 6e 20 61 20 76 61 6c 75 65 20 |d, when a value | 00000a70 69 73 20 72 65 71 75 65 73 74 65 64 20 70 72 65 |is requested pre| 00000a80 73 73 69 6e 67 0d 52 45 54 55 52 4e 20 6f 6e 20 |ssing.RETURN on | 00000a90 69 74 27 73 20 6f 77 6e 20 77 69 6c 6c 20 6c 65 |it's own will le| 00000aa0 61 76 65 20 74 68 65 20 76 61 6c 75 65 20 61 73 |ave the value as| 00000ab0 20 69 74 20 77 61 73 2e 0d 0d 41 6c 74 68 6f 75 | it was...Althou| 00000ac0 67 68 20 77 65 20 77 6f 75 6c 64 20 6c 69 6b 65 |gh we would like| 00000ad0 20 74 6f 20 67 6f 20 69 6e 74 6f 20 64 65 74 61 | to go into deta| 00000ae0 69 6c 20 6f 6e 20 65 6e 76 65 6c 6f 70 65 20 64 |il on envelope d| 00000af0 65 73 69 67 6e 20 74 68 65 20 73 70 61 63 65 0d |esign the space.| 00000b00 68 65 72 65 20 64 6f 65 73 20 6e 6f 74 20 61 6c |here does not al| 00000b10 6c 6f 77 20 75 73 2c 20 69 6e 20 61 6e 79 20 63 |low us, in any c| 00000b20 61 73 65 20 74 68 65 69 72 20 61 72 65 20 6d 61 |ase their are ma| 00000b30 6e 79 20 67 6f 6f 64 20 62 6f 6f 6b 73 20 6f 6e |ny good books on| 00000b40 20 73 6f 75 6e 64 0d 63 6f 6d 6d 61 6e 64 73 20 | sound.commands | 00000b50 6f 6e 20 74 68 65 20 42 42 43 2e 20 54 68 65 20 |on the BBC. The | 00000b60 42 42 43 20 55 73 65 72 20 47 75 69 64 65 20 61 |BBC User Guide a| 00000b70 6c 73 6f 20 67 69 76 65 73 20 61 20 28 73 69 6d |lso gives a (sim| 00000b80 70 6c 65 29 0d 69 6e 74 72 6f 64 75 63 74 69 6f |ple).introductio| 00000b90 6e 20 74 6f 20 73 6f 75 6e 64 20 61 6e 64 20 65 |n to sound and e| 00000ba0 6e 76 65 6c 6f 70 65 73 2c 20 73 65 65 20 70 61 |nvelopes, see pa| 00000bb0 67 65 73 20 31 38 30 2c 20 32 34 34 20 61 6e 64 |ges 180, 244 and| 00000bc0 20 33 34 37 2e 20 0d | 347. .| 00000bc7
10-02-89/E\Info.m0
10-02-89/E\Info.m1
10-02-89/E\Info.m2
10-02-89/E\Info.m4
10-02-89/E\Info.m5
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