Monophony - Melody without accompaniment
Diatonicism - Intervallic content based on one of the standard heptatonic scales
Chromaticism - Intervallic content based on the chromatic scale (all semitones)
Raga - the word for mode in Indian music
Aerophone - instrument that produces sound through the vibration of an air cavity
Chordophone - instrument that produces sound through string vibration
Plainchant - also known as Gregorian Chant, monophonic Catholic chant developed in the 9th and 10th centuries
Byzantine Chant - Greek orthodox chant, the oldest musical style in which the composers are known (since c. 6th century)
Antiphony - Call and response, one of the oldest musical forms
Syllabicism - singing one note per syllable
Melismaticism - singing multiple notes per syllable
Johann Sebastian Bach - German Baroque composer, one of the most important of all time (1685-1750)