nbo-plugins
An entire virtual orchestra in LV2 plugin format
... (Linux) format for use in Ardour, Muse, QTractoor, etc.
They are available in 2 formats; a collection of LV2 plugins, and a collection of linux executables. The plugins can be loaded into a host program such as Ardour, Muse, QTractor, etc. The executables are standalone versions that contain both the samples, and the engine that plays them.