Nice job, I thoroughly enjoyed this.
I have been considering an MoXF7 for home studio use, and was surprised you didn't use the Yamaha voices. Does this mean the string/ orchestral voices do not match up to the Integra-7, or are you just more used to the Roland voices?
Thanks. Good question. In the past I have always preferred the Roland SRX expansion boards for classical orchestral sounds. These are part of the Integra. I would assess the MoXF on a par, maybe slightly ahead of the Integra, but ONLY IF(!) you expand it with a flash board and purchase the two libraries Garritan GPO Lite and DCP Complete Orchestra. Without the flash board, to my ears the factory strings do not get as realistic. I might even buy a third library (Symphonic Strings for Motif XS) which has 400 MB waveforms just for strings, but it's in an incompatible format and you have to convert it.
I have already recorded a MoXF version (with the flash library sounds) and am going to upload it either on Youtube or Soundcloud. I'll post a link then.