melrōse musical expression player

# Melrōse program The program `melrōse` is a Read–Eval–Print Loop (REPL) that produces or consumes MIDI. By entering statements using the language, `melrōse` will send out MIDI messages to any connected DAW. Although it is possible to program directly using the command line interface of `melrōse`, it is much more convenient to use the Visual Studio Code editor with the Melrose Plugin which uses the [HTTP API](http.md) of the same running program. ### program flags You can start the program `melrōse` without any flags. You can use the following flags to change its behavior. -http <address> address on which to listen for HTTP requests (default ":8118") -tunnel <subdomain> offers a public subdomain.loca.lt address to server HTTP request -v verbose logging ### CLI control Commands to control the program itself are prefix with a colon `:`. With `:h` you get the list of known commands. ### CLI line editing The following line editing commands are supported on platforms and terminals that `melrōse` supports: Keystroke | Action --------- | ------ Tab | Next completion Shift-Tab | (after Tab) Previous completion Ctrl-A, Home | Move cursor to beginning of line Ctrl-E, End | Move cursor to end of line Ctrl-B, Left | Move cursor one character left Ctrl-F, Right| Move cursor one character right Ctrl-Left, Alt-B | Move cursor to previous word Ctrl-Right, Alt-F | Move cursor to next word Ctrl-D, Del | (if line is *not* empty) Delete character under cursor Ctrl-D | (if line *is* empty) End of File - usually quits application Ctrl-C | Reset input (create new empty prompt) Ctrl-L | Clear screen (line is unmodified) Ctrl-T | Transpose previous character with current character Ctrl-H, BackSpace | Delete character before cursor Ctrl-W, Alt-BackSpace | Delete word leading up to cursor Alt-D | Delete word following cursor Ctrl-K | Delete from cursor to end of line Ctrl-U | Delete from start of line to cursor Ctrl-P, Up | Previous match from history Ctrl-N, Down | Next match from history Ctrl-R | Reverse Search history (Ctrl-S forward, Ctrl-G cancel) Ctrl-Y | Paste from Yank buffer (Alt-Y to paste next yank instead) ### special commands !<object> play the object <object>! browse the notes of the object