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.
: AllyCare support for these legacy models is scheduled to continue until September 30th, 2027 Replacement Models
Select the USB drive, then the .lrf file. linkrunner at 1000 firmware
The name on the bench tag. It should have been impossible. Firmware readouts did not read names. Rowan’s palms grew slick. They scanned the bench; Lena shrugged as if she hadn’t seen the text. : AllyCare support for these legacy models is
Connect the LinkRunner AT 1000 to your PC using a . Ensure the device is powered on. Initiate Update on the Device : Navigate to Tools on the tester's home screen. Scroll to Firmware Update and press Select . Press F1 (Update) . Complete via LinkRunner AT Manager : Open the LinkRunner AT Manager application on your PC. Click Tools > Update Firmware . Click Select and browse to the downloaded .zip file. Click Open , then click Update to finalize the process. Essential Support Resources Firmware readouts did not read names
The next day, the company announced a reorganization. Management sent a list of role changes and redundancies across emails that smelled faintly of corporate antiseptic. Rowan’s name was on the list for reassignment out of the floor team and into remote diagnostics—a promotion in jargon, a goodbye in practice. Packets would still be routed, but Rowan would do it from a windowless office miles away, a new badge with a different bench number, a contract that promised more money and fewer faces.
Navigate to Tools > Firmware Update and press Select , then F1 (Update) . Manager Software: Open LinkRunner AT Manager. Go to Tools > Update Firmware . Browse to the downloaded .zip file and click Open .
She unplugged the LinkRunner, wiped dust off its yellow casing, and slipped it into her bag. On the back, someone had once scratched a tiny message: “When you can’t reach the network, let the network reach you.”
Piano Companion is a music theory reference app that gives musicians instant access to 1,500+ chords with inversions, 10,000+ scales, a chord progression builder, reverse chord lookup, and an interactive circle of fifths. It is available on iOS, Android, and macOS, and supports 40+ languages. Whether you are a beginner learning your first chords or a professional songwriter sketching ideas, Piano Companion provides the answers you need in seconds.
Tap the piano keys you know on screen or connect a MIDI keyboard, and Piano Companion identifies every matching chord and scale in real time. This is especially useful when you hear a chord in a song but don't know its name — just play the notes and the app tells you what they form.
Piano Companion is free to download on iOS, Android, and macOS. The free version includes core chord and scale lookups. A Pro upgrade unlocks additional features including all chord inversions, the full scale library, the chord progression builder, and the circle of fifths tool.
Yes. Connect any MIDI keyboard to your device and Piano Companion will detect the notes you play, identifying chords and scales in real time. This works on iOS (via Camera Connection Kit or Bluetooth MIDI), Android (via USB OTG), and macOS (via USB or Bluetooth).
Piano Companion is available on iPhone, iPad, Android phones and tablets, and macOS. Your chord libraries sync across devices, so you can start on your phone and continue on your Mac.
Available on every major platform. Start exploring chords and scales today.
