Reliably play midi music files from a folder or ".m3u" playlist. Adjust playback speed, volume and output device on the fly during playback. A large playback progress bar makes jumping forward and backward in time a breeze with just a single click or tap. Supports ".mid", ".midi" and ".rmi" files in format 0 (single track) and format 1 (multi-track). Comes complete with 24 sample midis ready to play.

• Dual play systems - Play Folder and Play List
• Comes with 25 built-in sample midis on a virtual disk
• Elapsed, Remaining and Total time readouts
• Device Status, Device Count, Msgs/sec and Data Rate readouts
• Native ".m3u" playlist support (copy, paste, open, save, build)
• Drag and drop midi files to play/add to playlist
• Play Modes: Once, Repeat One, Repeat All, All Once, Random
• Standard Play Speed Range: 50% to 200% (0.5x to 2x)
• Extended Play Speed Range: 10% to 1,000% (0.1x to 10x)
• Intro Mode: Play first 2s, 5s, 10s or 30s of midi
• Rewind/Fast Forward by: 1s, 2s, 5s, 10s or 30s
• Play on Start option - playback commences on app start
• Always on Midi option - maintain connection to midi device(s) for instant playback
• Auto Fade In - eliminate loud or abrupt notes during rewind, fast forward or reposition operations
• Playback Progress bar - click to reposition/jump backward or forward in time
• Volume control with volume boost (up to 200%)
• "Mixer" link - display Windows "Volume Mixer" app
• Play ".mid", ".midi" and ".rmi" midi files in 0 and 1 formats
• Scrolling lyrics viewer
• Detailed midi information panel
• Tracks Panel: Realtime track data indicators, display flat or shaded, with mute all, unmute all, and mute individual track options
• Channels Panel: Realtime channel output volume indicators with peak level hold and variable hold time, display flat or shaded, unmute all, mute all, and mute individual channel options
• Mixer: Adjust individual channel volume levels from 0% to 200%
• Option: Number channels 0-15 or 1-16
• Notes Panel: 128 realtime note usage indicators with variable hold time, 8-12 notes per line, labels as letters or numbers, display flat or shaded, unmute all, mute all, and mute individual note options
• Option: Number notes 0-127 or 1-128
• Piano Panel: View realtime piano keystrokes on a 128, 88, 76, 61, 54, 49 or 37 key keyboard
• Piano Keystroke Illumination: Off, Flat, Shade Up, Shade Down, Subtle, Subtle 2, Leading Edge, and Leading Edge 2
• Piano: Mark middle C key, C + F keys, or all white keys
• Volume Bars: Realtime average volume and bass volume levels (left and right vertical)
• Transpose option: Shift all notes up/down music scale
• Option: Peak Render Rate: 10, 20, 30 (default), 60 or 100fps
• Use an Xbox Controller to control Cynthia's main functions: Playback speed, volume, song position, display panels, song file navigation, jump to start of song, toggle fullscreen mode, etc
• Large list capacity for handling thousands of midi files
• Switch between up to 10 midi playback devices
• Supports playback through a single midi device, or multiple simultaneous midi devices
• Multi-Device Options (per midi device): Time Shift - adjust playback timing to compensate for midi device lag from -500 ms to +500 ms, Device Volume - adjust output volume from 0% to 200%, Output Channels - select which midi channels to play through the device
• Automatic Midi Device(s) Resync - detects OS changes in midi device ordering/names and corrects in realtime
• Custom built midi playback engine for high playback stability
• Simple and easy to use
• Options Window - Easily change app color, font, and settings
• Portable
• Smart Source Code (Borland Delphi 3 and Lazarus 2.2/4.4/4.6)

• Start playback at beginning of midi for "Once" and "All Once" options if previously finished playing
• Updated codebase

• Optimised for 2K display (60fps+)
• Functional on 4K display
• General render improvements of ~300%
• Text render improvements of ~200%
• Smart font character caching with twin feather support
• Increased background animation render rate to 60fps
• Active GUI Scaling (60% - 200% of OS scaling, realtime adaptive)
• TextCore (upgraded) - non-GUI and GUI text box engine (txt, bwd, bwp, rtf)
• FastDraw (new) - GUI / general graphics work via high-level and low-level rapid-render procs for the CPU
• Dynamic scaling and loading of System, Folder, and App images
• New color-based animated background schemes / engine upgrade
• Automatic MSIX handling (MS Store app/MSIX bundle) with seamless adaptive settings and temp file storage and management for restrictive access compliance
• Source code supports both 32bit and 64bit
• 32bit compilation in Borland Delphi 3 (stable)
• 32bit compilation in Lazarus 2.2 (stable)
• 64bit compilation in Lazarus 4.4+ (functional/work in progress)

Download cynthia.exe or from the "bin" or "src" folders above - for Microsoft Windows, and Linux/MacOS via Wine.