Hello kokairu and welcome here!
Thanks for explaining how duet songs currently work in USDX. To be honest, I feel that the file format - as it is nowadays - is very incomplete, and its lack of features lead me think that it might (should be ?) completely redesigned, breaking compatibility with the current UltarStar mods. Not to mention that these mods are not released as "stable" versions, and the format is not supported at all (yet ?) by alternatives such as Performous. As changes might be in the work, it might not be that safe to start creating songs for that format.
Also, I tried installing that USDX Challenge Mode on my Windows 7 session but couldn't get the songs to display at all. :/
Didn't try to fix that yet.
There are two things in favour of Duet Songs so far:
- I have no idea how many songs (approx) were created using the current Duet Mode file format. If the number is high enough, that might motivate the devs not to break compatibility with what's now available when implementing a solid format.
- If the format changes, it won't be by much and it will be easy enough to update the files (by merely copy-pasting the content, I guess)
There's a real opportunity to use Duet for a few songs, including
Winter Wrap Up or
Find a Pet. Will definitely have to look into this.
