Performing Arts Dictionary
- Dictionary of terms associated with ballet, tap dancing and music.
- http://www.theatredance.com/library.html

Glossary of Theatre Terms
- Provides definitions of many technical theatre terms.
- http://www.dramatic.com.au/glossary/

Encyclopedia of Microtonal Music Theory
- By Tonalsoft, a software manufacturer. Includes introduction.
- http://www.tonalsoft.com/enc/encyclopedia.aspx

Ballet Terms A to Z
- From learntodance.com.
- http://www.learntodance.com/online%20ballet%20lesson.htm

Ballet Dictionary - American Ballet Theater
- 170 terms from the book "Technical Manual and Dictionary of Classical Ballet," Dover Publications.
- http://www.abt.org/education/dictionary/index.html

Grove Concise Dictionary of Music
- Searchable entries, including definitions of musical terms, brief biographies of composers, performers and ensembles.
- http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html

Virginia Tech Multimedia Music Dictionary
- A reference for musical terms, including some terms from other languages. Includes AIFF sound files for the pronunciation of each term and images for some terms.
- http://www.music.vt.edu/musicdictionary/

Dolmetsch Online's Music Dictionary
- Designed to help one understand the more common musical terms which are come across in a score or a book on music, including terms in other languages.
- http://www.dolmetsch.com/musictheorydefs.htm

Glossary of Technical Theatre Terms
- Contains many terms related to the technical aspects of theater, and terms of other related disciplines.
- http://www.theatrecrafts.com/glossary/glossary.shtml

Vance's Fantastic Tap Dance Dictionary
- A complete glossary of tap dance, including names of steps and combinations, and descriptions of the movements associated with tapping.
- http://www.theatredance.com/dictionary.html

Indian Music Glossary
- Glossary of terms used in Indian music.
- http://chandrakantha.com/tablasite/glossary.htm

Belly Dance Terms
- Glossary with detailed definitions. Terms in several different languages.
- http://www.shira.net/glossary.htm