Art Forms of Dimensions Tomorrow is an album by the American jazz musician Sun Ra and his Solar Arkestra. Often considered the first of Ra's 'outside' recordings, the album was the first to make extensive use of a discovery by the Arkestra's drummer and engineer Tommy Hunter: "I wasn't sure what Sun Ra would think of it... I thought he might be mad - but he loved it. It blew his mind! By working the volume of the output on the playback I could control the effect, make it fast or slow, drop it out, or whatever." [Tommy Hunter]