Mixolydian/Dorian Gapped Scales and Hybrids
Link to Ionian, Mixolydian, Dorian and Aeolian: Samples and Examples of the 4 Main Musical Scales in Celtic, Anglo-American and English Folk Songs []
The Dorian scale is the same as the Mixolydian scale except that the third note is flattened by a semitone. To convert a Mixolydian to a Dorian key signature, add a flat to, or remove a sharp from, it. Likewise, to convert a Dorian to a Mixolydian key signature, remove a flat from, or add a sharp to, it. The Mixolydian and Dorian scales are thus quite similar to each other, and there are quite a few Mixolydian/Dorian gapped scales and quite a few Mixolydian/Dorian hybrids. Here are some examples.