Timing correction should be referenced to the groove instrument and tightened track by track in order of rhythmic importance

Effective timing correction starts by identifying the single instrument that best embodies the groove (often drums), smoothing any stumbles in that reference track, and then introducing remaining instruments one at a time, tightening each to match the reference. Working in this order — bass next, then rhythm section, then remaining parts — prevents confusion about the source of timing unevenness. For layered parts (stacked guitars, backing vocals), correct each layer in isolation before combining. Fine crossfade-based editing uses: (1) gaps before consonants and natural silences; (2) noisy signal regions; (3) placement immediately before transient attack onsets. Overall timing offset between tracks affects feel — instruments playing slightly early feel faster, slightly late feel lazier.

Examples

Jack Joseph Puig: ‘An instrument that’s playing right on the bar line will feel faster… I’m talking here about a few milliseconds forward or backward. So within a bar you can have brisk eighth notes or lazy eighth notes.‘

Assessment

Your bass track has one note that is 15ms early relative to the kick. Describe the procedure for correcting it, including where to place the crossfade edit points and how long the crossfade should be.