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.
It was a trip that none of them would ever forget, and they all agreed that it was the perfect way to spend their summer vacation.
As they set off on their journey, they stumbled upon a quirky little shop that sold repackaged snacks and treats. Alexavia, being the curious one, decided to try out a few of their unique flavors.
Her friends, who went by their IDs, including 40618092, had planned a trip to a beautiful beachside resort. The group was buzzing with excitement as they chatted about their plans for the trip.
Alexavia had always been excited about planning a fun trip with her friends. She had been saving up for weeks, and finally, the day had arrived. As she packed her bags, she couldn't help but feel a sense of adventure wash over her.
It was a trip that none of them would ever forget, and they all agreed that it was the perfect way to spend their summer vacation.
As they set off on their journey, they stumbled upon a quirky little shop that sold repackaged snacks and treats. Alexavia, being the curious one, decided to try out a few of their unique flavors. It was a trip that none of them
Her friends, who went by their IDs, including 40618092, had planned a trip to a beautiful beachside resort. The group was buzzing with excitement as they chatted about their plans for the trip. Her friends, who went by their IDs, including
Alexavia had always been excited about planning a fun trip with her friends. She had been saving up for weeks, and finally, the day had arrived. As she packed her bags, she couldn't help but feel a sense of adventure wash over her. She had been saving up for weeks, and
Available on every major platform. Start exploring chords and scales today.
