Sheila On 7 is an alternative rock band from Yogyakarta, Indonesia. "Sheila" was their early name, taken from Celtic's which means "Musical". Lately "on 7" added according to the 7 major scale of gamut. They have changed their lineup several times since their formation on 6th May 1996. Their first lineup consisted of Akhdiyat Duta Modjo (Vocals), Saktia Ari Seno (Guitar), Eross Candra (Guitar), Adam Muhammad Subarkah (Bass) and Anton Widiastanto (Drum).