Unlock the full power of music theory and daily practice with Live Scale Detector & Tuner. Whether you are identifying song keys from audio files, tuning instruments, practicing rhythm, or learning chord shapes, this all-in-one suite is your ultimate studio companion.

Simply sing a note, strum a chord, or upload an audio track, and our high-accuracy pitch and harmonic engine reveals the exact musical key, BPM, relative minor, and fitting chord progressions in real time.

ALL-IN-ONE MUSICIAN TOOLS:

1. Audio File Key & BPM Analyzer with Studio Player
Import your audio files (MP3, WAV, AAC, M4A, FLAC) to detect the root key, musical scale, and tempo automatically.
• Studio Player: Real-time semitone pitch transposition (-12 to +12 st) without altering tempo.
• Variable Playback Speed: Slow down or speed up practice tracks (0.5x to 2.0x).
• Song Key Diatonic Chords: Direct playback of chords matching the track's detected scale.

2. Real-Time Pitch & Live Scale Detector
Sing or play into your microphone to detect musical notes and song keys live. The autocorrelation engine displays both the Major Key and Relative Minor (e.g., C Major / A Minor, G Major / E Minor) with confidence metering and instant Nashville number system progressions.

3. Interactive Diatonic Chords & Nashville Number System
Instantly discover the chords belonging in your detected key. Access Roman numeral chord analysis (I - ii - iii - IV - V - vi - vii°) for easy transposition and Nashville notation reference, with acoustic playback for every chord.

4. Comprehensive Chord Library (Guitar & Piano)
Master voicings across all 12 keys: Major, Minor, 7th, Maj7, m7, Diminished, Augmented, Sus2, and Sus4.
• Guitar Voicings: High-contrast fretboard box diagrams showing fingerings, open strings, and mute markers.
• Piano Voicings: Interactive keyboard highlighting active keys and intervals.
• Strumming Audio: Audition chords with realistic acoustic guitar strums and grand piano sound.

5. Precision Metronome & Speed Trainer
Practice timing with a studio-grade lookahead Web Audio metronome (40 to 240 BPM), tap tempo, multiple time signatures (4/4, 3/4, 2/4, 6/8), and accented downbeats.
• Visual Flash: High-visibility strobe flash for loud rehearsal rooms.
• Speed Trainer: Hands-free auto-tempo accelerando with custom BPM steps and bar intervals.

6. Multi-Instrument Chromatic Tuner
Tune with surgical 0.1 Hz accuracy featuring a real-time cents meter (-50 to +50 cents), frequency readout, and green "IN TUNE" lock indicator.
Includes tuning presets with audio pitch reference:
• Guitar: Standard, Drop D, Half Step Down, Full Step Down, Drop C, Open D, Open G, Open E, DADGAD, 7-String, 8-String.
• Bass: 4-String Standard, Drop D, 5-String Standard, 5-String High C, 6-String Standard.
• Ukulele: Standard C, Low G, Baritone, D-Tuning.
• Orchestral Strings: Violin / Fiddle, Viola, Cello, Double Bass.
• Folk & World: Banjo (5-String Open G & 4-String Tenor), Mandolin, Cavaquinho, Balalaika, Bouzouki, Oud.

7. Scale & Mode Explorer
Browse musical scales and all 7 Major church modes (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian) plus Pentatonic and Blues scales with interactive scale playback.

WHO IS IT FOR?
• Songwriters & Producers: Detect song keys, transpose tracks on the fly, and discover chord progressions.
• Guitarists & Bassists: Tune accurately across alternate tunings, study chord diagrams, and practice rhythm.
• Singers & Vocalists: Perfect your pitch and intervals with real-time pitch feedback.
• Teachers & Students: Make ear training and music theory visual, interactive, and practical.

Turn your device into a portable music studio. Download Live Scale Detector & Tuner today!