Altered dominant 7th chords (V7alt)

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When would you most likely use altered tension tones when playing a V7 chord?

  • When the V7 chord resolves to a I(maj7) or Im(7) chord.
  • When the V7 chord does not resolve to a I(maj7) or Im(7) chord.
  • When the chord is followed by a key change (modulation).