Notes used in C♯ minor Dominant 7 Chord:
C♯ + E + G♯ + B
minor Dominant 7 chords are played combining a root, minor (♭) third, perfect fifth, and minor (♭) seventh notes of the root note's major scale.
minor Dominant 7 Chord Formula:
1 + 3♭ + 5 + 7♭