The Cmaj7sus4#5/A# is a fundamental major chord in guitar music. To play this chord correctly, ensure your fingers are placed precisely on the frets indicated in the diagram above.

Music Theory Analysis

From a theoretical perspective, the C major seventh suspended fourth sharp fifth over A# is built using the 1P, 4P, 5A, 7M intervals. In the key of C Major, this chord functions as the I chord.