thats exactly the same plan i had.
to engineer sounds/loops and setup the launchpad to play each part of track at the times I wish.
Ultimately the set would sound completely continuous, always original, and i would have complete control over the bass, melody, vocals, and any/all instruments playing at any time.
having 2x launchpad, macbook pro with high specs, 16 channel mixer.
what would be the best equipment to get this setup going?