Home > Education, help > Why won’t it grid?!?!?!?!?!?

Why won’t it grid?!?!?!?!?!?

A few people have run into issues on mix trains when it comes to mixing out of the previous DJ’s last track. The most common issue seems to revolve around the pitch on the last track continuing to change.  This can certainly make it tricky or difficult to mix into for a DJ who manually beat mixes, and a complete non-starter for someone who utilizes beat gridding.  After doing a couple of tests and a little research it seems that the issue most frequently occurs with “vinyl rips” (i.e. a track recorded from vinyl as a wav or mp3). It seems particularly prevalent with older vinyl. Essentially the track “Drifts” due to minor fluctuations on the turntable or potentially how it was originally produced. It is unclear (to me at least) if the ripping process exacerbates the problem.  It’s likely that DJ’s who manually beat mix continually fix the drift while playing and hence rarely/never notice it.  It will however cause problems for DJs who leave the beat matching to the beat grid so that they can focus on other elements of their set.

What does this mean for Mix Train Players?

Since we started the collective we have strived for an all-inclusive policy encouraging people with every setup to get involved. That is something that will continue. What we do ask is that all DJs who rip vinyl for use in mix trains:

  1. Only use native MP3/WAV/FLAC files as their last track in the slot or
  2. Manually beat grid their tracks to ensure that the grids lock throughout the entire track. (This does not include ‘warping’ or any other beat grid method that supports dynamic grids as only a small subset of our players have that capability in their setup. )

We do not intend to actively check what people are using but we do reserve the right to roll back the mix to the previous DJ should there be issues with a given slot.

For the purists out there, this entire topic might seem like a waste of time and that “Real DJs” mix using nothing more than their ears.  If this sounds like you please be sure to throw out every piece of technology you own and go back to sitting in the garden, waiting to catch that squirrel you will be having for dinner.


  1. jay
    April 20, 2011 at 3:25 am

    “we do reserve the right to roll back the mix to the previous DJ should there be issues with a given slot.”

    rolling back to previous slot is a fair point if the sound quality is impaired , but to roll it back because the next dj isn’t good enough and cant cheat is imorral ….

    IMTC legal department

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