MuseScore is a WYSIWYG editor with the ability to quickly enter notes from both the computer keyboard and an external MIDI keyboard. Supports import and export of data in MIDI, MusicXML, LilyPond formats, as well as import of files in MusE, Capella and Band-in-a-Box formats. In addition, the program can export scores to PDF, SVG and PNG files, or to LilyPond documents for further fine-tuning of the score.

Integrated application development environment (IDE) in the programming languages Java, JavaFX, Ruby, Python, C++, PHP, JavaScript/HTML5, Groovy and several others. To support development for mobile platforms (J2ME), you must install the NetBeans Mobility Pack separately.

In terms of quality and capabilities, NetBeans IDE is not inferior to the best commercial (paid) integrated development environments, supporting refactoring, profiling, highlighting syntactic structures with color, autocompletion of typed structures on the fly, many predefined code templates, and more.

A MIDI file player/game that displays the musical notes AND teaches you how to play the piano.

PianoBooster is a fun way of playing along with a musical accompaniment and at the same time learning the basics of reading musical notation.
The difference between playing along to a CD or a standard MIDI file is that PianoBooster listens and reacts to what you are playing on a MIDI keyboard.

To run Piano Booster you need a MIDI Piano Keyboard and a MIDI interface for the PC. If you don't have a MIDI keyboard you can still try out PianoBooster, using the PC keyboard ('x' is middle C), but a MIDI piano is really recommended.

A free program for recording scores and editing tablature. It also allows you to work with MIDI.

Possibilities:

VokoscreenNG can be used to record videos from computers screen, webcams, external cameras, etc. This graphical tool can produce educational videos, live recordings of browser navigation, tutorials of installations, record videoconferences, etc. You can capture an alone video or video and sound.

This program can save files in some formats and use some codecs for video and audio:
- Video: x264, openh264, H.264 (Intel GPU), MPEG-2 (Intel GPU) and VP8.
- Audio: vorbis, flac, opus, mp3 and aac.
- File : mkv, webm, avi, mp4 and mov.

KuMir (Set of Educational WORLDS) is a programming system designed to support initial computer science and programming courses in secondary and high schools.
Peculiarities:
✔ The KuMir system uses a school algorithmic language with Russian vocabulary and built-in executors Robot and Draftsman;
✔ When entering a program, KuMir carries out constant full control of its correctness, reporting in the fields of the program about all detected errors;
✔ When executing a program in step-by-step mode, KuMir displays the results of assignment operations and the values of logical expressions in the fields. This allows you to speed up the process of mastering the basics of programming.

Integrated development environment for the Python language. It includes a graphical debugger that supports interactive exploration while suspended and auto-stopping on critical exceptions.
Main features:
- Project Manager;
- Editor with syntax highlighting;
- Debugger, profiler;
- Run Python code with support for command line parameters;
- Unit testing;
- Console for output and task manager (self-renewing TODO sheet).

U++ is a cross-platform rapid application development environment in C++. Can work with GCC, Clang, MinGW and Visual C++ and contains a full-featured debugger.
Fast development comes from smart and aggressive use of C++, not fancy code generators. In this regard, U++ competes with popular scripting languages while retaining the runtime characteristics of C/C++.
The development environment includes BLITZ build technology for up to 4x faster C++ rebuilds, visual designers for U++ libraries, Topic++ for documenting code and creating rich text resources for applications (such as help and code documentation), and Assist++, a powerful C++ code analyzer , which provides features such as code completion, navigation, and transformation.

Denemo is a program designed to prepare sheet music for further processing and publication using LilyPond.
This is not a WYSIWYG music editor; its task is to quickly type notes, without displaying them correctly. Almost all input functions are implemented using hot keys, which actually speeds up the typing process, according to the developers. Some keyboard commands are the same as the corresponding commands in the Lilypond syntax: for example, moving the cursor or note an octave up and down is done with the keys ' and, respectively, the beginning and end of a phrasing line - ( and ), etc. Command overrides are available, so the user can customize the environment completely for yourself.
Denemo has different operating modes: insertion modes (normal and classic, which differ in the order of keystrokes when entering notes) and editing. Also, any operation can be performed with the mouse and recognition of their recorded sound, giving musicians a more familiar input method.
By saving scores in the LilyPond format and further editing the resulting source file, you can improve the appearance. It is possible to export scores in ABC music notation format and create MIDI files.

це програма, яка надає змішаний аудіо / MIDI-секвенсор (відтворення і запис), багатодоріжковий редактор, редагування музики з використанням як рояль н-рол і оцінка позначень, MIDI файл вводу-виводу, LilyPond і Csound файли експорту і т.д.