Piano Companion is a music theory reference app for songwriters, producers, teachers, and students. Look up any of 1,500+ chords or 10,000+ scales instantly, build progressions, and explore harmony on iOS, Android, and Mac.


Whether you're stuck on a progression, blanking on a scale name, or just exploring — Piano Companion gives you the answer in seconds. Press the keys you know, and it tells you what you're playing.
Search by name or tap the keys you know. Piano Companion identifies what you're playing — even from a MIDI keyboard.
The Chord Progression Builder suggests chords that fit your key. Experiment with patterns, listen back, and find what sounds right.
See notes on the grand staff, fingering for both hands, intervals, degrees, and compatible scales — all in context, not abstract textbook diagrams.
A heavy reliance on foundational lifts like squats, deadlifts, and overhead presses to build dense muscle mass.
In 2007, a shocking scandal erupted when it was discovered that St. Cloud had been secretly filming his female clients during workouts at his fitness studio. The hidden camera was allegedly placed in the studio's locker room, and St. Cloud claimed that he was using it to monitor his clients' progress and provide them with personalized feedback. However, it soon became clear that St. Cloud's true intentions were far more sinister.
Home security camera systems (doorbell cams, indoor/outdoor Wi-Fi cameras, and wired CCTV) have become essential tools for:
Compare this with modern "science-based" training programs.
A heavy reliance on foundational lifts like squats, deadlifts, and overhead presses to build dense muscle mass.
In 2007, a shocking scandal erupted when it was discovered that St. Cloud had been secretly filming his female clients during workouts at his fitness studio. The hidden camera was allegedly placed in the studio's locker room, and St. Cloud claimed that he was using it to monitor his clients' progress and provide them with personalized feedback. However, it soon became clear that St. Cloud's true intentions were far more sinister. Rodney St Cloud Workout And Hidden Camera Workoutl
Home security camera systems (doorbell cams, indoor/outdoor Wi-Fi cameras, and wired CCTV) have become essential tools for: A heavy reliance on foundational lifts like squats,
Compare this with modern "science-based" training programs. indoor/outdoor Wi-Fi cameras