Dave Merrill
Axe-Master
With flat nineI think it’s been mentioned before but the C# minor pentatonic will give you the sound for both chords. A pentatonic bluesy sound over the C# and a Lydian sound over the DMaj7, so just hang on the C# minor pentatonic for the most part. Of course you can emphasize chord tones over each chord when you want more of a challenge.