Comment 5 for bug 1476290

I am sorry to jump in so late, but was just looking for this very ability. I have been working with the rekordbox.xml file for some time. In Rekordbox, editing the file allows on to finely tweak beatgrids, change time signatures, work with music that does quirky things, rhythmically; I use a lot of Latin tracks, mostly cumbia, that is old school and often drops or adds a couple of beats.

Pioneer documents the use of the xml file pretty well here:
https://rekordbox.com/en/support/developer.php
The spec for the xml format is here:
http://www.prodjnet.com/rekordbox/support/pdf/xml_format_list.pdf

I will post some samples as soon as I get a chance.

I'm currently working on a primitive editor for the xml file which will allow one to do some things that are not possible to do directly in Rekordbox:
1 -- Change the time signature at any point. This is useful for non 4/4 tracks as well as for beat stuffing.
2 -- Move an individual beat marker without affecting surrounding ones.
3 -- Set a start and end point to define the region that may be altered by cascading or global changes (eg., shifting the beatgrid, changing the bpm at one beat mark, moving an individual beat mark without limiting the change to that mark, as in 2, above.

My frustration with Rekordbox (the only application I've found that will allow me to make the changes I need to make, albeit with great difficulty) led me back to Mixxx, and I am playing with it using a Pioneer DDJ-SX2 and Wego4. I'd love to figure out how to use it with real turntables and a DJM-Nexus mixer. I'd love to talk to any developers interested in pursuing importing the rekordbox.xml file into Mixxx, or anyone thinking about modifying it for use in Rekordbox.

Thanks,

Jim