Intelligent Software - This rather unique category of music software includes several interactive accompaniment and compositional programs that work in different ways depending on their design and intent.
The following are a few of these programs:Smart Music Studio-from Coda functions like a music minus one system with the added feature that it uses a microphone to listen and follow the tempo of the performer on the melody. The accompaniments are preproduced MIDI sequences that replicate the original score whether it’s a piano accompaniment, orchestra or some other ensemble.
Band In A Box
Band In A Box-from PG Music is a very popular program that creates jazz and pop accompaniments, solos and even new songs.
This program will not follow the tempo of the musician, but like any MIDI program, the tempo and key of the song can be independently changed instantly.
Digital Audio - With a digital audio recording program, sequencing program or digital audio workstation (DAW) that has digital audio features, sound can be recorded, edited, stored and played back from the computer.
Working with digital audio requires a fair amount of processing speed and RAM memory, and a large amount of hard disk storage space.
The advantage is powerful sound editing capabilities without the need for tape recorders or the difficulty of synchronizing a tape deck to a sequencer.
Software Synthesizers & Sound Design
Software synthesizers and sound design programs can fully function without the addition of any extra hardware to the computer.
They are less expensive than their hardware counterparts (a synthesizer sound module) without any real drawbacks.
The computer screen gives the user a large graphical display for editing sound parameters by moving various knobs and sliders on the screen with the mouse.
-Propellerhead's Reason is an example of a Software Synthesizer.