AGS ~ Advanced Gtk+ Sequencer


Advanced GTK+ Sequencer is intended to use for music composition. It features a piano roll, as well a synth, matrix editor, drum machine, soundfont2 player, mixer and an output panel.

It’s designed to be highly configurable, you may add effects to its effect chain, add or remove audio channels/pads.

You may set up a fully functional network of engines, therefore exists a link editor for linking audio lines.

In conjunction with ags you need a realtime kernel and alsa support. `ags` uses conditional locks to keep several threads in sync that’s why you need at least a preemptible kernel.

Features:
  • save or open Advanced Gtk+ Sequencer XML files with XPath support
  • add or remove audio engines with adjustable audio channels and pads
  • link channels with property dialog
  • output panel, mixer, drum and matrix sequencer, soft synth and audio file player
  • piano roll with basic notation editing supporting copy & paste
  • adjustable BPM
  • LADSPA, DSSI and Lv2 support
  • export to WAV, FLAC, OGG and others
  • multiple sinks like Pulseaudio, JACK, ALSA and OSS
  • automation editor
  • waveform editor with copy & paste
  • capture sound with AgsAudiorec machine
  • MIDI instrument input
  • import/export to Standard MIDI Files
  • OSC content format support
  • OSC server for remote control and monitoring

nongnu.org/gsequencer/

sourceforge.net/projects/ags/

Swami ~ MIDI Music Composition


Project SWAMI, Sampled Waveforms And Musical Instruments, is a collection of free software for editing, managing and playing musical instruments for MIDI music composition. Current focus is primarily the SoundFont format, which is an open file format for digital audio “sample” based instruments.

Swami-2_0

www.swamiproject.org
sourceforge.net/projects/swami

FluidSynth ~ A SoundFont Synthesizer


FluidSynth is a real-time software synthesizer based on the SoundFont 2 specifications and has reached widespread distribution. FluidSynth itself does not have a graphical user interface, but due to its powerful API several applications utilize it and it has even found its way onto embedded systems and is used in some mobile apps.

Features:

  • Cross platform support (Linux, macOS and Windows to name a few)
  • SoundFont 2 support
  • SoundFont 3 support (vorbis-compressed SF2)
  • Realtime effect control using SoundFont 2.01 modulators
  • Playback of MIDI files
  • Shared library which can be used in other programs
  • Built in command line shell

FluidSynth

www.fluidsynth.org

QSynth ~ FluidSynth GUI Front-end

QSynth is a fluidsynth GUI front-end application written in C++ around the Qt framework using Qt Designer.

qsynth-screenshot1

qsynth.sourceforge.io

LMMS ~ Let’s Make Music


Making beats has never been easier:

  • Produce music with your computer by creating melodies and beats, synthesizing and mixing sounds, arranging samples and much more.
  • Playback instruments, samples and plugins with a typing or MIDI keyboard in a user-friendly and modern interface.
  • Bundled with ready-to-use stuff from an assortment of instrument and effect plugins, presets and samples to VST and SoundFont support.

Made by musicians, for musicians.

lmms-main

LMMS – Project View

lmms.io
github.com/LMMS
en.wikipedia.org/wiki/LMMS