Entries also cover individual works, including operas and ballets, orchestras and companies from around the world, famous opera houses, concert-halls, and musical festivals. Musical terms and styles, as well as forms ranging from operatic, vocal, and film scores, to song cycles, chamber, hymns, barbershop, and oratorios are covered, as are general themes such as musicology, acoustics, and absolute pitch, and historical periods such as the Byzantine era. Entries also include a wide range of musical instruments, from the familiar - strings, wind, and brass - to the less familiar - aeolian harp, bamboula and sackbut.

SEARCH TOOLS
Intelligent search integrates several tools to match or suggest what you are looking for:
• Search autocomplete helps find words quickly by displaying predictions as you type
• Keyword lookup allows you to search within compound words and phrases
• An automatic ‘Fuzzy filter’ to correct word spelling, as well as ‘Wild card’ ('*' or '?') to replace a letter or entire parts of a word
• Camera search looks up words in the camera viewfinder and displays results
• Use our Voice search when you don't know how an entry is spelled
• Share word definitions via installed apps on your device
• Swipe-to-delete functionality in the Recent and Favorites menus.

LEARNING TOOLS
• ‘Favorites’ feature to create custom folders with lists of words from the extensive library
• ‘Recent’ list to easily review looked-up words
• ‘Word of the day’ section to expand your vocabulary daily