The only concrete example of min (add9) chords in popular music that I could find was Every Breath You Take by The Police. It’s usually far easier to grab a min9 chord on the guitar, but the the add9 version has its own sound and actually seems to convey more tension to my ear. It’s also a good chord to get the fingers used to less familiar locations on the fretboard without making any extreme stretches.
Pedal On 