Includes Grove Music Online
Oxford Dictionary of Music
Oxford Companion to Music

The premier German-language music encyclopedia. Google Translate tool available

Peer-reviewed annotated bibliographies on musicology and ethnomusicology

Devoted to music research of all the world's peoples;
includes audio examples

Concise biographies

Instruments and their makers

Current news and directories

Cross-index of data for over 41,000 opera and oratorio premieres

International Phonetic Alphabet (IPA) transcriptions and literal translations of opera arias and art song texts.

International charting albums and singles under exclusive academic license from Billboard. Tutorials available.

Links to substantial open-access projects of use to musicians and musicologists. Maintained by CCARH.

Research portal for networked musicology (formerly ViFa Musik)