Ever flip through voicing books wondering "what does this sound like?" BeingJAZZER shows jazz chord voicings on a grand staff — left hand bass clef, right hand treble. Set a tempo, and it auto-cycles through chords. → 1,320+ voicings (28 types × 12 keys × inversions) → Metronome with auto chord changes → ii-V-I, turnarounds, and more → MIDI keyboard input with live notation → Mac & Windows, 3.6MB Pay one-time. No subscription. No account.