I found this while sniffing around the Internets for an UTAU alternative for Linux: https://notabug.org/isengaara/nwptools The entire OREMO toolkit, ported to Linux by Isengaara-P. Mimirobo-P usually releases his software under free software licenses, thus OREMO can be modified and distributed freely. What's better, the whole toolkit is programmed in Tcl/Tk, thus it's very easy to port to Linux and BSD. Please note that you need the Tcl/Tk environment and Snack for Tcl/Tk in order to run both OREMO and SetParam. To run it, run Code: wish /whatever/nwptools/oremo/source/oremo.tcl in terminal. Substitute "whatever" with the path OREMO is extracted to. Oh, and don't give a proprietary license to this piece of software. This is an obligation in the GNU GPL.