Gb Chords A A# / Bb B C C#/Db D D#/Eb E F F#/Gb G G#/Ab All Root Gb Chords Gb Gbm Gb7 Gbmaj7 Gbm7 GbmM7 Gbsus2 Gbsus4 Gb5 Gb6 Gbm6 Gb6add9 Gb9 Gbm9 Gbmaj9 Gb11 Gbm11 Gb13 Gbm13 Gbmaj13 Gb7-5 Gb7+5 Gbdim Gbdim7 Gbm7b5 Gbaug Gbaug7