Here is the full list of all 26 Electronauts achievements.
Play only the pad synth for 2 full loops with all backing tracks muted
Use the vocal equipment whilst recording a sequence on an instrument.
Clear 3 sequences in succession
Throw a grenade and use the beat repeat to studder the grenade.
Played multiplayer
Play nothing but the harp for 2 whole loops.
Use the arrangement equipment
Have a sequence playing on every instrument in a room
Record a sequence on an instrument, mute it for a loop and play that instrument with your sticks for a loop then unmute it.
Sequence all notes on all possible sequencers on every instrument
Jam in a single room for 15 mins or more
Fill 4 rows on the arrangement equipment
Play a song in each visualizer at least once
Play an instrument consistently for 1 min
Use the remix beat repeat 25 times
Throw the audio grenades at your fellow electronaut
Have complete silence for 4 minutes and 33 second
Have delay enabled on all instruments and hold down the filter in FX cube for 2 loops.
Mute the kick/snare stems in a backing track and then bring them back in
Play 2 orb kits simultaneously for 2 full loops
Play only the synth ball for 4 full loops
Mute 2 sequences at the end of a loop
Throw an audio grenade when you transition backing tracks.
Play every note on the synth ball in ascending order
Play 20 different songs
Play every instrument type in the game