Talk:右肩の蝶 (Migikata no Chou)/@comment-12003348-20130426014801/@comment-3467648-20130511173005

If you're interesed you can revise Songs featuring Kagamine Len. There you can find some of the most popular songs from him

Now, about the resons why Len is less popular than Rin could be attributed to the female voices have more demand than the males ones, and because Len's voicebank has lower quality than Rin (specially in terms of pronunciation)