intonation

This term describes the melodic contour of speech, where the variation in pitch conveys emotional state or grammatical intent rather than specific word meanings. It is the primary tool for distinguishing a statement from a question in English without changing the vocabulary. In musical contexts, it refers to the precision of pitch. While a singer might have poor intonation by being slightly flat or sharp, a musician might focus on intonation as the technical act of tuning an instrument to a standard reference.