Does LEGO rock band work with customs?

https://www.youtube.com/watch?v=4LXCi5-lhhg

Okay so heres the deal, I go to this youth center and they just got lego rock band and they noticed that they cant get any songs. I showed the youth leader this site and he asked if i could look into MAKING the songs for him per request and i said ill see what i could do. And honestly im still confused with the lingo and what tools i need to convert a regular mp3 file into a rb2 file (rb3 files have different files and dont work with LRB as im sure you know) I just need help getting in the right direction of tools, converters, charts, half stepping vocals and pedal intervals ( i think i said that right). Honestly I looked into the PDF in the section and didnt understand much, so if anyone could help me and just give me a few pointers that would be amazing thank you c:

Oh I think I see what you are asking! You want to just convert an RB3 file to a lego rock band file?

I want to know in general how to get customs for lego rock band and what programs I need to have on my pc in order to do so

Simply check out that video above ” src=”/wp-content/uploads/invision_emoticons/default_SA_smile.gif” /> there is a program to convert rb3 to rb2 but I forgot what it was called