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.
This draft is written to be engaging, scannable, and ready to publish on platforms like LinkedIn, engineering blogs, or student forums.
Practice voltage regulation experiments, as detailed in laboratory reports hosted on Scribd, where students measure how terminal voltage changes from no-load to full-load conditions. labvolt simulator
If you’ve ever studied electrical power systems, motor controls, or industrial automation, you’ve probably seen the iconic blue LabVolt hardware. The physical trainers are robust, but they are expensive, heavy, and require dedicated lab space. This draft is written to be engaging, scannable,
: The simulator includes virtual versions of high-end measuring tools like oscilloscopes, phasor analyzers, harmonic analyzers , and four-quadrant dynamometers. Web-Based Accessibility LVSIM-EMS portal The physical trainers are robust, but they are
The Hardware-Software Hybrid One of the defining characteristics of the LabVolt system is its unique position between purely virtual simulation and physical machinery. Unlike fully digital environments such as MATLAB/Simulink or video game-style engineering simulators, LabVolt typically utilizes physical training stations—modules for motors, pneumatics, and power electronics—interfaced with computer-based data acquisition and control software. This approach allows students to interact with physical components: they must wire actual connections, adjust physical potentiometers, and feel the heat of a motor under load, while simultaneously monitoring waveforms and logic states on a digital interface.
The software provides a 3D visual interface where students can interact with virtual modules that are identical in appearance and functionality to actual Lab-Volt Series training systems.
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.
