I am of the opinion that this little "project" doesn't warrant anything greater than just a thread, as well. Stickied IF it turns out fruitful, but otherwise... it's just not important enough, or large enough for that matter, to have an entire section dedicated to it, or anything at all more significant than just a regular thread.
I am not certain you could even fill more than maybe two pages of a thread with completed sheet music of all the Beyblade music in existence, so this... just seems excessive.