Stuck playing in the same key? Need help learning to improvise and expand your musical playbook? Introducing The Harmonic GPS: • Interactive chord galaxy across all 12 keys • Visualize harmony like a musical star map • Diatonic, borrowed, secondary dominants & modulations • 2-5-1s in every key at a glance • Circle-of-fifths & chain of dominants overlays • Relative major/minor relationships made visual • Click any chord → see notes, function & mode • Piano and guitar-friendly voicings • Extended harmony (9s, 11s, 13s, altered dominants) • Neo-soul, jazz/gospel, cinematic & modal pathways Smart suggestions for where to go next keeps you playing for hours. Practice, improvise, explore, or just get inspired. Comment 🎹 to join the waitlist #guitar #piano #guitarcenter #musician