We're building the AI brain for guitarists.
Most music apps bolt AI on as a feature. We started the other way around — designing Guitar Mentor, ground-up, around an intelligence that actually understands music. We call it PlugAI.
Meet PlugAI
The mind behind the music.
PlugAI is our purpose-built music intelligence. It reasons step-by-step in a visible thinking mode, calls real tools to fetch lyrics and chords, aligns them, and explains theory like a patient teacher — not a generic chatbot wearing a guitar costume.
From "find the chords for California Dreamin'" to "why does this progression sound sad?", PlugAI is the thread running through every screen of the app.
One song in. Everything out.
Drop in a track and our cloud pipeline turns raw audio into something you can actually play — in a single run.
- Ingest — Any song, imported or from your library.
- Separate — Six clean stems via source separation.
- Detect — Chords & key from a trained model.
- Align — Lyrics & MIDI, synced to the beat.
- Play — Practice-ready in the player, instantly.
Cutting-edge, end to end
Agentic reasoning
PlugAI plans, calls tools, and streams a visible thinking trace before it answers — real tool-use, not autocomplete.
Music ML pipeline
Source separation, a trained chord-recognition model, beat tracking and lyric alignment running in the cloud.
Native performance
A real-time tuner kernel and a Metal-accelerated fretboard, rendered natively for buttery 120fps interaction.
On-device + cloud
Latency-sensitive audio runs on-device; heavy analysis scales in the cloud. You get speed where it matters.
Private by design
Sign in with Apple, your practice data stays yours, and analysis quotas are enforced fairly server-side.
Always improving
An adaptive intelligence layer spots your weak spots and shapes tomorrow's practice around them.
Built by players, for players
Playing first
Every feature has to make you a better player faster. If it doesn't get you back to the guitar, it doesn't ship.
AI you can see
No black boxes. PlugAI shows its work — the steps, the sources, the reasoning — so you learn while it helps.
Craft in the details
From a string that vibrates when you tap it to a needle that locks green in tune, the small things are the app.