WoodStock

Prepublication : Comic Bunch

Resume:
Passionate music lover, 21 year old Naruse Gaku yearns to be a part of the legendary "Woodstock" Rock Music Festival. However, due to his shy nature, he lacks the courage to form a band. Instead, he resorts to creating a virtual band called "The Charlies", to fulfill his dreams. Thanks to word of mouth from netizens, The Charlies gain popularity, and Naruse's life changes rapidly.

I've heard some good reviews for this title and it's a music manga.
The first four chapters are translated already. Well one think obviously to Beck with an insecure main character with amazing hidden talent but still it's an interesting start.