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.
Here is a feature profile of the Mix Lab 3.1 interface.
Whether you are running Virtual DJ on a compact 13-inch laptop or a massive secondary performance monitor, the Mix Lab 31 skin scales sharply without blurring text or distorting the placement of faders. Step-by-Step Installation Guide
Your for custom mapping tips.
: Dedicated physical mapping toggles for instant vocal, melody, and drum separation.
Integrated pads for Hot Cues, Sampler, and Slicer that mimic physical controllers. Personalise the interface with different LED color schemes. How to Download the Exclusive Mix Lab 31 Skin
Drag and drop the downloaded skin file directly into the folder (do not unzip it).
The Virtual DJ Mix Lab 3.1 skin represents the best of what community-driven DJ software can offer: a professional interface designed by a DJ, for DJs. Its blend of hardware-inspired design, hidden power-user features, and long-term community support makes it a truly exclusive and valuable addition to any Virtual DJ setup.
If you want, I can:
stands as one of the most legendary, high-utility custom interfaces ever created for the VirtualDJ platform. Originally designed by the creator DJ Format and later modernized by GroovinDJ , this layout redefined how digital DJs interact with their mixing software.
: Mix Lab 31 provides expanded, high-definition waveform displays, allowing for more precise beat-matching and cue-point management.
Here is a feature profile of the Mix Lab 3.1 interface.
Whether you are running Virtual DJ on a compact 13-inch laptop or a massive secondary performance monitor, the Mix Lab 31 skin scales sharply without blurring text or distorting the placement of faders. Step-by-Step Installation Guide
Your for custom mapping tips.
: Dedicated physical mapping toggles for instant vocal, melody, and drum separation.
Integrated pads for Hot Cues, Sampler, and Slicer that mimic physical controllers. Personalise the interface with different LED color schemes. How to Download the Exclusive Mix Lab 31 Skin virtual dj mix lab 31 skin better download exclusive
Drag and drop the downloaded skin file directly into the folder (do not unzip it).
The Virtual DJ Mix Lab 3.1 skin represents the best of what community-driven DJ software can offer: a professional interface designed by a DJ, for DJs. Its blend of hardware-inspired design, hidden power-user features, and long-term community support makes it a truly exclusive and valuable addition to any Virtual DJ setup. Here is a feature profile of the Mix Lab 3
If you want, I can:
stands as one of the most legendary, high-utility custom interfaces ever created for the VirtualDJ platform. Originally designed by the creator DJ Format and later modernized by GroovinDJ , this layout redefined how digital DJs interact with their mixing software. : Dedicated physical mapping toggles for instant vocal,
: Mix Lab 31 provides expanded, high-definition waveform displays, allowing for more precise beat-matching and cue-point management.