User blog comment:CrazyChippy/Jack the Ripper VS Hannibal Lecter (Remix)/@comment-25501967-20150405090246

Well, lemme give you some advice:

When you choose a beat, know the original ERB's bpm using this website: https://songbpm.com/

Find a beat with a similar bpm on whatever beat producer's Soundclick or whatever

try to line the acapella perfectly to the beat and speed up some bits of the vocals if they don't mix.

Only re-arrange the vocals when needed.