A software synthesizer or virtual instrument is a computer program for digital audio generation. It works like a common synthesizer, but is built from software. A software synthesizer will typically respond to MIDI calls like a normal synthesizer module.
... 7.3% have a female householder with no husband present, and 17.9% are non-families. 13.4% of all households are made up of individuals and 5.5% have someone living alone ...