Guitar Lick in D Dorian Mode resolving to the flat third F. A clean jazz blues guitar lick. The Dorian mode alters the major scale by flattening the third and the seventh notes. In the case the D Dorian this alters the F# and C# making them natural. This means that the notes of D Dorian are the same as C Ionian mode which is the C Major Scale. In my opinion it is better to bring out the flavor of the mode thinking of the intervals and underlying chord patterns. I do find it useful to equate to a major scale though just to get a layout of the note choices on the neck.