About Changes : Jazz Sheet Markup
Markup Editor & Viewer for Lead Sheets Optimized for Input Efficiency
Changes – Jazz Sheet Markup is an app
specialized for creating lead sheets using text.
● Focused on Efficiency
It uses a unique markup text format.
By deliberately excluding articulation, tempo information, time signatures, etc.,
you can create lead sheets with only the minimum information necessary for jazz performance.
● Share with Simple Text
It uses an extremely simple text data format.
Created lead sheets can be saved and shared as plain text.
● Flexible Display Customization
Adjust the display freely to suit your playing style or purpose.
・Toggle editor display on/off
・Transposition support
・Toggle staff display on/off
・Change chord name text size
・Switch chord symbol notation
m7-5 ⇔ φ
dim ⇔ o
maj ⇔ M / △
aug ⇔ +
● AI-powered automatic composition feature
Leveraging the benefits of simple markup, you can create music using LLM.
Compose with one click from the in-app file menu (ads will play).
※ You can choose between setting your own Gemini API key or storing the prompt in the clipboard to paste into your own LLM.
※ Since generation relies on LLM, the number of notes per measure may vary, and notes not adhering to music theory may be used. Please adjust the generated result as needed.
●Editing GUI
Beyond text editing, a simplified editing GUI is also implemented. Tap measures, chords, or notes to edit individual elements.
Translated with DeepL.com (free version)
Additional APP Information
Latest Version
Varies with deviceRequires Android
Category
Free Music & Audio AppContent Rating
Everyone
Report
Flag as inappropriateWhat's New in the Latest Version Varies with device
Last updated on Jan 9, 2026
Minor bug fixes and improvements. Install or update to the newest version to check it out!









