Drum Charter

Drum Charter is a professional drum notation app for creating, editing, and playing drum charts using an intuitive text-based format. Perfect for drummers, music teachers, and composers who need a fast, distraction-free way to write drum patterns.

KEY FEATURES

* Text-Based Notation
Simple ASCII symbols represent different drums: 'x' for hi-hat, 'o' for snare, 'Q' for kick. Fast to type, easy to read.

* Extended Drum Vocabulary
Full cymbal range including China cymbal and all standard drums. Cross-stick notation for authentic rim shots. Professional soundset covers all common drum techniques.

* Real-Time Audio Playback
High-quality drum sounds powered by the FluidR3_GM soundfont. Hear your patterns instantly with professional MIDI-based playback. All drum voices including cross-stick and China cymbal.

* BPM Control via Metadata
Set tempo directly in your chart with [140 BPM]. Default 120 BPM, range 60-200 BPM. Play at the exact speed you need.

* Playback from Cursor
Press Space to play from wherever your cursor is positioned. Perfect for practicing specific sections.

* Smart Bar Management
- Auto-numbering up to 999 bars
- Repeat notation (4x) for efficient charting
- Move bars up/down with buttons
- Section headers for song structure

* Concert Mode with Live BPM and Playlists
Full-screen performance view with large 22pt text on black background. Perfect readability under stage lights. Real-time BPM detection from MIDI/E-Drums shows your actual playing speed with live tempo feedback. Load folders of songs and navigate with arrow keys. Visual metronome automatically syncs to each song's tempo. Spark line graph shows tempo history. Toggle between 4 and 6 bars per line. Perfect for gigs and practice.

* Enhanced Visual Styling
Color-coded bar numbers, section headers, and repeat markers. Subtle rest styling for cleaner charts. All while maintaining perfect monospaced alignment.

* Multi-Column Export
Export charts in 2, 4, 6, or 8 bars per line format. Optional "Replace rests with spaces" for LogicPro compatibility. Perfect for printing or sharing with your band.

* Universal App - Now on iPhone
Native experience on iPhone, iPad, and Mac with seamless iCloud sync. Start on iPhone, continue on iPad or Mac.

* iPhone Optimized
Split-screen layout with editor on top and compact keyboard-style palette at bottom. All drum symbols and editing functions accessible via touch-optimized 42pt buttons.

* iPad Optimized
Landscape-optimized interface. All features accessible via symbol palette and Quick Actions. Full export preview with multi-column formatting. Concert Mode perfect for iPad stands on stage.

* Professional Tools
- 16-beat visual indicator during playback
- Beat position indicator shows cursor location in real-time
- Validation with helpful error messages
- Comprehensive keyboard shortcuts
- Pattern-based auto-suggestions

WHO IS THIS FOR?
- Drummers learning new songs
- Music teachers creating lesson materials
- Composers sketching drum parts
- Band members sharing chart arrangements
- Live performers needing readable stage charts
- Anyone who prefers text over complex notation software

TECHNICAL HIGHLIGHTS
- Document-based architecture with iCloud support
- High-quality FluidR3_GM soundfont (MIT licensed)
- MIDI-based drum synthesis with extended sound library
- Cross-platform SwiftUI interface
- Live MIDI tempo detection from E-Drums
- Pattern recognition and auto-completion
- Export to plain text for universal compatibility

PLATFORM SUPPORT
- iPhone (iOS 15.0 or later)
- iPad (iPadOS 15.0 or later)
- Mac (macOS 12.0 or later, Apple Silicon and Intel)
- Optimized for all screen sizes (iPhone SE to iPad Pro)
- MIDI device support on all platforms

Perfect for drummers who want professional results without the complexity of traditional notation software. Create charts as fast as you can think. Perform with confidence using real-time tempo feedback.