Midiary: MIDI File Studio
Groove transfer. MIDI editing.
About
This app allows musicians to edit and refine MIDI files by extracting and applying groove information, adjusting note parameters, and inspecting file structure. It preserves the original file while offering robust editing and auditioning capabilities.
What's New in Midiary
4.0
September 13, 2026
NEW IN 4.0 — GROOVE BENCH Extract the timing and velocity feel of a MIDI passage and apply it to another part. Save up to 64 local templates; choose independent timing and dynamics strengths, review the verified edit, compare original/edit audition and undo. Pitches and note durations stay intact. Empty reference cells leave target notes unchanged. PPQN files only; repeating cycles use quarter notes from file start, independently of time signature. Controllers and pedal events stay in place.
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FAQ
What is Midiary's primary function?
Midiary is an offline editor and inspector for Standard MIDI Files on iPhone and iPad. It allows users to extract groove timing and velocity from one MIDI passage and apply it to another, alongside detailed note editing and file inspection.
How does Midiary handle original MIDI files?
Midiary ensures that imported MIDI bytes remain unchanged. Editing sessions are saved locally with undo and redo capabilities that persist even after closing the app, and the original file is always retained separately.
Can I audition my edits in Midiary?
Yes, you can hear both the original and edited versions of your MIDI file using a neutral studio tone. This audition feature helps compare notes and timing, but it does not reproduce external instrument programs or SysEx settings.
What kind of musical corrections can I make with Midiary?
You can select tracks and channels to transpose by semitones, adjust note velocity, and move note starts to straight or triplet timing grids. Variable quantize strength allows for partial timing adjustments, and drum protection excludes channel 10 from batch edits.
Does Midiary support different MIDI file formats?
Midiary primarily works with PPQN files for groove transfer. Format 2 files are auditioned one independent sequence at a time, and it supports both metrical and SMPTE timing, including independent format 2 sequence clocks.
What are the import limitations for MIDI files in Midiary?
Imports in Midiary support files up to 8 MB in size, with a limit of 1,024 tracks and 100,000 events. Playback runs in the foreground.
How does Midiary handle saving and history?
Editing sessions save locally with undo and redo that survive closing the app. History keeps up to 20 edits within a 48 MB budget, with the imported original retained separately. Damaged sessions are preserved for recovery.
Does Midiary have ads or in-app purchases?
No, Midiary does not have any advertisements or in-app purchases. It is a paid application, and all MIDI files and editing sessions remain local unless you choose to export or share them.
