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 sounds like you’re looking for a copywriting piece (e.g., a promotional description, social media caption, or voiceover script) for the “After Effects Project - VideoHive CD Jewel Case Promotion 494440.”
Below is a tailored promotional description you can use on marketplaces like VideoHive, Envato Market, or your own portfolio. It sounds like you’re looking for a copywriting piece (e
The jewel case (plastic CD case) evokes instant nostalgia for the 90s and 2000s music era, but it also implies authenticity. Using this template signals to your audience that your content has "physical value" even in a digital world. Why the "Jewel Case"
In the crowded market of motion graphics templates, standing out requires specificity. The CD Jewel Case Promotion (494440) succeeds because it taps into a specific visual memory: holding a CD on a Friday night in the 2000s. By using this template, you aren't just showing album art; you are selling an experience. Conclusion In the crowded market of motion graphics
Take the time to customize the lighting, match your brand colors, and edit the text. When you are finished, you will have a high-end product visualization that looks like it took a week to animate—when in reality, it only took you an afternoon.
Happy animating, and don't forget to render with alpha channel if you want that transparent plastic to pop!
This is a specific request for documentation or a guide related to a VideoHive After Effects project (Item ID: 494440). Since I cannot browse live marketplaces or access your local files, I will provide a universal helpful guide covering how to successfully edit, render, and troubleshoot this type of "CD Jewel Case Promotion" template.
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.