D flat major seventh flat sixth piano chord - DbM7b6
The D flat major seventh flat sixth chord is a 4-note chord consisting of the notes Db, F, Bbb and C.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as DbM7b6.
Interactive piano diagram for the D flat major seventh flat sixth chord
Chords that are a subset of DbM7b6. These contain less notes but all of them are included in DbM7b6.