Well, the hard drive's destruction happened over the summer. I was playing MMX5 (which uses XA audio, and not PSX-MIDI), using the full version of the bleem! emulator.
Lately, I've been playing FF9 using ePSXe 1.5.0, lewpy's GPU, and Eternal SPU 1.20. Now, FF9 DOES NOT use XA audio for bgm, but the movies do. There is a slight lighting-up of the hard disk light during playback, due to the newer cd-rom drive (the 52x one).
Also, I've been playing FF Anthology, with also uses XA audio for bgm. Why they don't simply use the PSX synth for that, I don't know....