Expanded Brass introduces euphonium, stopped horn, fluttertonguing sounds, and straight mute sounds.

Expanded Mallets I contains 5-octave marimba, vibraphone (various motor settings), crotales, and chimes.

Expanded Percussion I adds twelve new instruments and supplementary techniques for eleven existing instruments.

Expanded Percussion II adds twenty-two new percussion instruments, including anvil, bongos, and flexatone.

Expanded Strings I contains additional techniques for all strings, including tremolos and muted sounds.

Expanded Strings II expands on the new sounds and techniques introduced in Expanded Strings I for violin, viola, cello and bass sections.

Expanded Woodwinds includes E-flat clarinet, contrabassoon, and fluttertonguing playback for most woodwinds.

Harpsichord provides samples recorded from a 1972 Robert Goble & Son harpsichord.