Sound Card 04 contains 100 sounds and is inserted into the expansion slot of the M4000D series units. Then you have 200 sounds for immediate access and that can be mixed independently in the playlists you create.

Orchestron sounds (8 sounds, sampled from instrument): Cello
Vocal Choir
Flute
French Horn Hammond B3 Pipe Organ Saxophone Violins

Optigan sounds (61 sounds, sampled from instrument): Scales (21 sounds):
B3 number 1
B3 number 2
B3 number 3
B3 number 4
B3 number 5
B3 + Leslie #1 B3 + Leslie #2 B3 + Leslie #3 B3 + Leslie #4 B3 + Leslie #5 Combo Organ #1 Combo Organ #2 Combo Organ #3 Combo Organ #4 Combo Organ #5 Oboe Harmonium
Pipe Organ Saxophone Marimba Vocal Choir