Music score editor
Canorus is a free cross-platform music score editor. It supports an unlimited number and length of staffs, polyphony, a MIDI playback of notes, chord markings, lyrics, import/export filters to formats like MIDI, MusicXML, ABC Music, MusiXTeX and LilyPond
Redland is a set of object-based, modular and portable C RDF libraries providing RDF APIs for the graph, triple storage (librdf), RDF/XML parsing and serializing (Raptor), SPARQL RDF querying (Rasqal). Language APIs in Perl, PHP, Python, Ruby and others.
Platform-independent C-API library implementing the Record-JAR file format, with mappings to other languages/technologies, including C++, COM, D, .NET, Python, Ruby, and STL.
A drop-in framework for adding tagging (folksonomy) capabilities to existing applications
Dictionnaire is an open-source French-English dictionary intended to cover modern phraseology as well as entries that are difficult to translate using traditional dictionaries.
Html Assembler is a static site generator. It automatically integrates page content such as text and photos in a modifiable page template creating a complete set of html files ready for upload to your site.
IdeoType is a book compiler that converts manuscript (XHTML) to book (PDF) on the fly.
Jeszra is a visual designtool, which combines 2D- vector graphics and GUI design. Jeszra is written in Tcl/Tk and creates reusable code for: * Tcl, Ruby, Lisp and Python. * DocBook based reference pages. * SVG import and export.
On Stop surely a show stopper.
Political-Consumers.org is a non-profit project which tries to organize international ethical consumer demands to the benefit of companies trying to be better than others.
This is a collection of REST specifications, and implementations of those specs, for very low-level information sharing and workflow operations using REST actions over HTTP. Implementations are in various languages, mainly Java, Python, and Ruby.
Some More Individual - Yes! A couple of projects around Semantic Web technologies to help to establish a better accessible Web and personalize this access.
VectorSection is a universal vector graphics translator. It is a group of loosely-coupled programs which can be used in scripting and as import/export plugins for graphical CAD/vector editor programs.
VocalEasel is a simple lead sheet editor and music rehearsal tool designed for the needs of Jazz vocalists, using LilyPond to produce printable lead sheets and MMA (Musical Midi Accompaniment) to produce MIDI accompaniments.
Libraries from working with XML-DSIG
ZK Light is renamed to ZKuery and moved to http://code.google.com/p/zkuery/. ZK Light is a client-only version of ZK; Support Java, C, PHP, Python...
This is the Open Source RESTful client for the take.io platform.
xmlsig is a multi-language, multi-platform implementation of XML signatures.