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sourceforge.net
Toadflax is a graphical tool for displaying and editing tunes in abc notation. It lets users load abc music notation files and work on each independently, with music shown on-screen without a PostScript interpreter. It provides transposition, and it exists in forms built with GTK and tkinter.
measuringpolyphony.org
Project presenting digital encodings of late medieval polyphonic music in mensural notation, linked where possible to high-resolution manuscript images and MIDI audio files. It aims to make transcriptions and audio freely available online and to encode the notation in a machine-readable format for search and analysis.
rentry.co
A guide by Dan on solving the 3x3x3 Rubik's Cube, using standard Western (WCA) notation. It covers the Beginner Method in full and an intermediate approach to CFOP, with sections on solving speed, notation and core methods.
scorecloud.com
ScoreCloud music notation software instantly turns your songs into sheet music. Users write and arrange music by playing into notation using Audio or MIDI. The Songwriter version is designed to turn recordings of voice and instruments into lead sheets with melody, lyrics and chords.
soundslice.com
Soundslice is a web-based tool for creating and using interactive sheet music. It syncs notation with real recordings such as YouTube or MP3 audio. The player allows clicking notes to jump to moments in a video, looping sections, slowing playback and transposing. A notation and tab editor is free for basic usage. It also offers a sheet music scanner and works in a browser on any device.
netabc.sourceforge.io
Netabc.tcl is a Tcl/Tk user interface for creating web pages that display abc music notation files using Jef Moine's Abc2svg JavaScript library. It renders tunes in common music notation in the browser and plays them, and the generated html file is stored on the user's computer. The program requires tcl/tk 8.5 or 8.6, though Windows users can run netabc.exe.
chessmonitor.com
ChessMonitor provides analytics for chess players, covering played games, openings, win rates, ratings and opponents. ChessMonitor Studio combines board, notation and databases on desktop and phone, and allows searching players in Ultra, Chess.com and Lichess. Profiles are free, while Studio comes with Plus and Pro.
cubing.net
Cubing.net hosts a collection of Rubik's cube tools and resources by Lucas Garron and others, including timers, scramblers, algorithm trainers, a Bluetooth timer and virtual reality tools. It also links to sites for cubing software archives, notation references, podcasts and unofficial competition results, and offers subdomains to people who want to share cubing projects.
raj457036.github.io
A browser-based utility that converts infix expressions to postfix or prefix notation and shows the conversion steps. It also evaluates postfix and prefix expressions. The page states that spaces must not be used in the expression. Algorithm steps for the postfix and prefix conversions are presented, and the page was updated on 26 February 2023.
dice.run
dice.run is a dice roller for tabletop RPGs and game design. It parses standard dice notation, rolls with full audit trails, and analyzes probability distributions showing mean, range and the full distribution as an expression is typed. It also offers community packs and a Studio for authoring dice programs with live distributions.
easyabc.sourceforge.net
EasyABC is an open source abc music notation editor developed by Nils Liberg and released around 2014, now maintained by Jan Wybren de Jong and Seymour Shlien on SourceForge. It displays the musical score and ABC code, plays tunes, and offers syntax highlighting and zoom. It imports MusicXML, MIDI and Noteworthy Composer files and exports to MIDI, SVG and PDF.
ipa-reader.com
IPA Reader is a tool for reading International Phonetic Alphabet notation aloud, so users can hear how words are pronounced from their phonetic spelling. Audio is generated through a request to Amazon Polly.
cs.hmc.edu
Impro-Visor is a music notation program from Harvey Mudd College Computer Science Department, designed to help jazz musicians compose and hear solos similar to improvised ones. It generates rhythm-section accompaniment from chords and can be used as a play-along device. The free, open-source software is licensed under GNU General Public License v2.
lightnote.co
Lightnote offers basic music theory lessons presented as interactive mini-lessons without complicated jargon or confusing notation. The lessons cover how sound works as a wave and harmony, and aim to help learners make their own music, chord progressions and melodies. The site states that no instruments are required.
lilypond.org
LilyPond is a free music engraving program in the GNU Project that produces sheet music through text input. Its style settings, font designs and algorithms are inspired by hand-engraved music. It handles classical music, complex notation, tablature, vocal music, lead sheets and orchestral projects.
mcmusiceditor.com
MC Musiceditor is free, open source (GPLv2 or above) music notation software made for Windows XP and above, developed by Reinier Maliepaard. It uses a modification of the ABC language, supports note and chord entry, score preview and MIDI playback, and exports to MIDI and PDF. The software is donateware and still maintained.
rkirsling.github.io
An interactive playground and graphical semantic calculator for modal propositional logic. Users add states and transitions to build models and enter formulas using notation such as []A for necessity and A for possibility.
dlmf.nist.gov
The NIST Digital Library of Mathematical Functions is an online reference covering special functions, organized into chapters such as algebraic and analytic methods, numerical methods, and orthogonal polynomials. It provides an index, notations, a guide to searching, permalinks and reference numbers for citing specific equations, tables and figures, and a list of software and errata.
sourceforge.net
Nootka is an application for learning classical score notation, helping users understand the basics of reading and practicing musical scores. The user plays notes displayed by the app, which checks in real time whether they were played correctly. The application is free and open source.
sourceforge.net
Two simple programs for children learning music notation. One is a TETRIS-like game with random notes scrolling on the screen; the other is an animated orc controlled by a piano. A MIDI device must be connected via a MIDI-to-USB cable.
pianocheetah.app
PianoCheetah is piano practice software that converts song notes to a maximum of ten keys, intended for playing with fingers rather than hand hopping. Notes are shown in a simplified notation aligned to the fingers, and the user sets tempo and note velocities while other tracks follow. The site states it is not a DAW.
playsheet.app
Playsheet is a MIDI piano learning app and rhythm-game-style trainer that turns real notation into interactive practice. Users import MusicXML, MIDI, ABC or MuseScore files or use a built-in catalog, connect a MIDI keyboard for note and timing feedback, loop bars, slow songs down and practice hands separately. The app is in alpha and free.
pokemonchess.com
Pokémon Chess is a browser-based chess game rendered on a canvas, with Pokémon-themed graphics. It offers room creation with optional passwords, spectating, a team builder for saving teams, and options to disable critical hits and misses, enforce random teams, and choose timers. An algebraic notation display and a forfeit button are included.