いろは唄 (Iroha Uta)

Background
On February 12, just one day after the song is uploaded, it ranked first in the Weekly VOCALOID Ranking. It reached the Nico Hall of Fame on February 16, 2009 (5 days after it was uploaded) and reached one million views on November 20, 2010.

This song uses the "Iroha", an old Japanese poem famous for its perfect pangram, containing each character of the Japanese syllabary only once. The poem was used as an ordering for the syllabary in old Japan.

There are various interpretations to the song, one being that it tells a story of a servant and a master, the servant being willing to do and be anything the master commands. Another common interpretion would be the song talks about a couple of lovers.

"Iroha Uta" is featured on the compilation albums EXIT TUNES PRESENTS Vocalogenesis feat. 初音ミク, EXIT TUNES PRESENTS Vocalogemini feat. 鏡音リン・レン and Hatsune Miku -Project DIVA- extend Complete Collection, among others.

Concerts
This song was performed at the MikuPa Live in Tokyo 2011 Concert, the MikuPa Live in Sapporo 2011 Concert, the MikuPa Live in Singapore 2011 Concert, the MikuPa Live in Tokyo 2012 Concert and the MikuPa Live in Kansai 2013 Concert.

Publications
"Iroha Uta" was featured in the mook ボカロ☆バンドスコア, vol.2.