ALSA MIDI Kommander is a DCOP interface exposing many ALSA Sequencer features for shell scripts, Kommander scripts, or KDE programs requiring MIDI sequencer services. A few utilities are included, which can be used both as programming examples and as real work tools. The main program, "kaseq" is a single executable used as a DCOP service program. It runs as a daemon, allowing only a single running instance, and provides a system tray icon to give visual feedback for MIDI activity and a way to control the program's execution.
The Advanced Linux Sound Architecture is composed of several parts. The first is a fully modularized sound driver which supports module autoloading, devfs, isapnp autoconfiguration, and gives complete access to analog audio, digital audio, control, mixer, synthesizer, DSP, MIDI, and timer components of audio hardware. It also includes a fully-featured kernel-level sequencer, a full compatibility layer for OSS/Free applications, an object-oriented C library which covers and enhances the ALSA kernel driver functionality for applications (client/server, plugins, PCM sharing/multiplexing, PCM metering, etc.), an interactive configuration program for the driver, and some simple utilities for basic management.
AMIDI-Plug is a MIDI subsystem for XMMS, BMP, and Audacious. It processes MIDI files and sends their events to one of the available backends (currently ALSA, FluidSynth, dummy). With the ALSA backend, any hardware or software synthesizer, as long as it provides ALSA sequence ports, can be used to play MIDI with AMIDI-Plug. With the FluidSynth backend, AMIDI-Plug directly accesses the FluidSynth library for MIDI playback and sends the generated audio into effect and output plugins of the player. A dummy backend is also provided for testing and analysis purposes. Playback is fully functional: play, stop, seek, pause, song information are available.
AdlMIDI is a command line program that plays MIDI files using software OPL3 emulation (FM synthesis). It has a console UI. It features a built-in selection of 50 patch sets, most of which are General MIDI compatible, but some of which are customized for playing original background music soundtracks of select PC games.
Algoscore is a graphical environment for algorithmic composition, where music is constructed directly in an interactive graphical score. The result is output to MIDI and CSound. Graphical objects are placed in a timeline and connected together. Some objects are fully dependent on user data, while some are generative and reacts on input from other objects. It is highly customizable and extensible with the Nasal scripting language. It has a non-realtime perspective where the composer can relate freely to time and construct the composition outside of time. This makes AlgoScore more like a traditional sequencer in this regard, but a graphical algorithmic sequencer with powerful and flexible scripting capabilities.
AlsaModularSynth is a realtime modular synthesizer and effect processor. It features MIDI controlled modular software synthesis, realtime effect processing with input capture, full control of all synthesis and effect parameters via MIDI, an integrated LADSPA browser with search capability, and JACK support.