Alf / Apple Music synthesiser
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The ALF Apple Music Synthesizer (AMS) is an easy to use peripheral which
allows you to program music into an Apple II computer
standard musical notation.
The ALF kit includes the synthesizer board (plugs into any peripheral
slot), exceptional quality software,
and an extensive user manual.
Sophisticated Music Entry Program
Sheet music is easily entered using the Apple game paddles. The
high-resolution ENTRY program features the familiar music staff with
"menu" of musical items listed
beneath it (note lengths, rests, edit commands, accidentals, etc.). One
game paddle moves a cursor up
and down the music staff and is used
to select the note pitch; the
second paddle chooses from the menu items (note length, etc.)
With the ALF hi-res ENTRY program, you won't have to use cryptic codes
to select note parameters. As you program sheet music with
measure bars are inserted
automatically (and note values are tied over the bar where necessary).
Key signatures are also
automatic - you don't have to keep writing
in every sharp or flat! Three monophonic,
individual parts can be programmed with each ALF
Two boards are required for stereo. A total of three synthesizers can
be used simultaneously for a
maximum of nine voices. By controling the envelope (or shape) of each
voice, many different instrumental sounds can be simulated.
The ALF Music Synthesizer has a pitch range of eight octaves-a wider
range than a grand piano The ALF can also play semitones -
notes" or the pitches in
between the keyboard notes of a piano, (The pitch range is from 27.5 to
55,000 Hertz, well beyond the limits
of human hearing.) Tuning
accurancy is virtually perfect within
two cents of pitch value.
Every parameter of the ENTRY program can be changed again and again
during a musical piece. For example, you can make changes in key,
signature, volume, and timbre (envelope).
Parts can be ditied at any time, also. Notes can be added or deleted,
note length can be
changed, as well as pitch, volume ect.
You can save songs on either cassette or disk, and play them back using
either ENTRY or PLAY,
The playback speed is adjusted with one of the
game paddles, and can be varied during the playback,
if you wish to change the overall tempo.
Colorful Playback Display
The ALF Music Synthesizer features a 16-color low-res graphic display
during song playback. Each musical part is represented on a stylized
piano "keyboard"- the intensity of the note determines the color, and
the pitch is shown in relation to "middle C".
The ALF Music
Synthesizer requires the use of an external audio
amplifier. Stereo programming is possible with the use of two or three
The Alf software includes the ENTRY and PLAY programs, sample songs, an
introduction to "envelope shaping", and demonstrations of
uses of the synthesiser