Technický koutek

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We have a good experience with:

Audio midi sequencer Reaper  +  documentation   

Vocal Harmonizer adds up 8 more voices plus autotune for the first one. TC Helicon VoiceLive 2    YouTube demo

We do some live (up to 16 audio track) recordings by Alesis IO26 and Behringer ADA8000 chained by an optical cable.