Advanced Minor 251s Notation This variation of the minor 251 uses a -11b5 as the 2 chord. You have multiple options for alterations over the V chord including #5#9 and b9#5. Advanced Minor 251s Lesson Supplement File Type: pdf Join PianoGroove Pro to access all downloads and learning resources. Download theory supplements, midi files, chord changes and full note-for-note transcriptions of every lesson. Learn more about pro membership >> Download