Usually like this…

This piece includes several instruments, voices, drums (in red). Software used to mix is REAPER, voice samples and one pad are generated in Reason (visible in the background on the left screen), the rest – including most effects – is hardware. On this particular piece, I used mainly the MS-20, DP4+, TC Reverb, and a bit of the holiest grail reverb. Main software effects are EQ, bitcrusher and a delay, secondary effects are Atlantis VST filter stages, and a flanger.

On a standard track I use around 30 tracks, one of my ongoing projects is currently over the 150 tracks mark and will most probably end up closer to 250 but the simpler pieces use up as little as 6 tracks (kick drum, snare drum, high hats, bass, lead, reverb).
Of course, you can use less, but it is convenient to have more tracks, and mixing on a computer now means there are fewer hardware (and financial) limits on the number of tracks you are mixing.

Quelques photos réalisées par Hugo Lavayssiere lors de la soirée de lancement.
Some pictures by Hugo Lavayssiere during the release party.

Track from experiences on audio generation based on pictures.