Transpose Standard MIDI Files Online
Shift the key of complete multi-track MIDI arrangements by semitones or octaves while preserving tempo maps, program changes, and channel parameters.
Upload your Standard MIDI (.mid) file
Drag & drop your file here, or click to browse (up to 25MB)
.MP3.WAV.MID.XML
Current Key
C major
Interactive Piano Roll (0 Notes)Click • Drag • Resize • Play
0 notes | BPM: 120
Click empty space to add notes • Drag to move • Drag right edge to resize • Press keys to auditionSelection: None
Ready to export your processed arrangement:
How to Use MIDI Transposer
Complete Illustrated Guide →- Upload any Format 0 or Format 1 MIDI file.
- Select the transposition interval in semitones (e.g. +3, -2, +12).
- Optionally exclude Channel 10 (standard General MIDI drum channel).
- Download your transposed MIDI file immediately.
Key Capabilities
- Supports both single-track and multi-track MIDI files
- Automatic drum channel protection (preserves unpitched percussion)
- Instant client-side binary transposition
Technical Specifications & Acoustic Limitations
MIDI pitch transposition operates directly on note event bytes. Channel 10 percussion tracks are preserved to prevent altering standard General MIDI drum kit mappings. Verify octave ranges to ensure notes remain within your target instrument's playable boundaries.
Frequently Asked Questions
Will transposing change the drum beats?↓
By default, Channel 10 (drums) is excluded from pitch transposition so your drum groove sounds identical.
Input & Output Formats
Supported Inputs:
Standard MIDI (.mid)
Supported Outputs:
Transposed MIDI (.mid)
DAW Compatibility: Ableton, FL Studio, Logic Pro, Cubase, MuseScore, Sibelius.
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