@partial You never know, it could have just been a bad experience in that one class. If you do want to get back into programming, I've heard good things about Codecademy. No worries, all the features you recommended are still on my task list! Are you trying to open .utau files maybe? Utsu only supports directory-based voicebanks right now, so you would need to basically copy the contents of the .utau voicebank into a new folder and select that folder when you open a voicebank. Is that what the .spef files are for? Sure, I'll add spectrograms and zoom controls to the task list, at the same priority as the other voicebank features. Spoiler: Extra note about voicebank saving Utsu creates both (foldered) oto.ini files and a (non-foldered) oto_ini.txt file. All of the oto data will be saved in both formats except for the lyrics/filenames not supported by Shift-JIS, which will only be saved in the oto_ini.txt file. That way, UTAU-Synth will be able to read the entire voicebank while UTAU will be able to read all parts that can be rendered in Shift-JIS. Prefixmaps work the same way--Utsu will create a Unicode prefixmap file and a Shift-JIS prefix.map file. The description, name, and author, meanwhile, will be saved in Shift-JIS by default so that UTAU can read them. If any characters in those fields are Unicode-only, the files will be saved in Unicode instead. TL:DR You can make Unicode voicebanks on Utsu and open them on UTAU-Synth, but UTAU won't be able to use them properly.