There is more than one artist with the name Iroha:

1) Iroha is a shoegaze / drone band from Birmingham, West Midlands, United Kingdom. Iroha was formed in 2007 by former Final member, Andy Swan, featuring Diarmuid Dalton of Jesu and Dominic Crane, combining his love of shoegaze with the melancholic 1980's sound of New Order, created Iroha, naming his new project after a Japanese poem.
Official Facebook page: http://www.facebook.com/irohaband

2) iroha is a Japanese producer who utilizes VOCALOIDs in his music. He is known for his DNB sound. He sometimes goes by the name iroha(sasaki).

3) Iroha is a musical project by Isay Jas, from Berlin, Germany.
Official Mysapce: http://www.myspace.com/irohaband

4) Iroha is a rock band from Japan. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.