In its pure form glass is a transparent, strong, hard-wearing, essentially inert, and biologically inactive material that can be formed with very smooth and impervious surfaces. Glass is, however, brittle and will break into sharp shards. These properties can be modified or changed with the addition of other compounds or heat treatment.
Common glass contains about 70% amorphous silicon dioxide (SiO2), which is the same chemical compound found in quartz and in its polycrystalline form, sand.
More on [ Glass ]

Glass, Louis (1864 - 1936) - Comparison of the composer with Carl Nielsen and mention of his students. Includes recommended recording.
Glass, Louis (1864 - 1936), Denmark - Biographical data, recommended CDs, books and sheet music, bibliography, and links to biographical essays from Dr. Estrella's Incredibly Abridged Dictionary of Composers.
Meta Description: [ This page contains basic and accurate biographical information and links to essays about the Romantic composer Glass. ]
Kunst der Fuge | Louis Glass - Symphonies 1 and other pieces offered in WMA/MP3 files.
Meta Description: [ Classical music site with thousands of MIDI files (free download!), and WMA/MP3 by outstanding featured artists (see at www.onclassical.com/). Music on the fugue, the counterpoint and generic classical music. Lists of over 5,000 fugues, and fugue theory, analyses, reviews, bibliographies and tool... ]
Louis Glass - Musica Classica Classical Music Dictionary entry compares him to Nielsen, Franck, and Bruckner.
Meta Description: [ Musica Classica - Classical Music - Klassische Musik - Karadar Bertoldi Ensemble - Dizionario della Musica Classica - Classical Music - Klassische Musik - Karadar Bertoldi Ensemble ]
Louis Glass, Danish Composer (1864-1936) - Dacapo Records biography focuses on his relative popularity to Nielsen and features his symphonic writing. Includes photograph.
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