It's better to use Addmusic then to use Addmusic 3.5 because all it does is glitch up your ROM, and by the way there's a custom music guide that's really easy to use in the documents section.
-------------------- the hack that I was gonna make Super Luigi World is being delayed due to another project of mine. I plan to create an editable Demo World: The Legend Continues,
however I still need a ? block that puts growing vine in the item box, ? block that puts a flying key in the item box, and white muncher GFX. After I insert these things I will be able to complete my DW:TLC pipes and blocks patch and then start working on the editable DW:TLC. If you would like to help me complete this project then PM me.