2 SATA III SSD in RAID 0 will beat a RevoDRive in read/write specs, and is cheaper! And it works!
Some motherboards have isssues with RevoDrives, so see if your mobo is supported. Some mobo have issue with booting from PCI-e, And you'll need an open PCI-e x4 slot (usually the bottom one), and make sure using that slot doesn't "turn off" any others features of the mobo, as my Asus P8Z68-V Pro would. So check, check, check.
RAID has it's drawn backs (no TRIM), but I'll haven't had a problem in over 2 years of SSD in RAID 0 (as I overprovision the drives myself: only partition 80% of total drive size).
IMHO, I wouldn't use an SSD just for music. But in your case (recording), maybe yes, but you'll need a large one, and these will be pricey. You want to use it as your OS drive too, won't you?