Intonation contours in English
Not all rises and falls in pitch that occur in the course of an English phrase can be attributed to stress. The same set of segments and word stresses can occur with a number of pitch patterns.
Consider the difference between:
• You're going. (statement)
• You're going? (question)
The rise and fall of pitch throughout is called its intonation contour. English has a number of intonation patterns which add conventionalized meanings to the utterance: question, statement, surprise, disbelief, sarcasm, teasing. An important feature of English intonation is the use of an intonational accent (and extra stress) to mark the focus of a sentence. Normally this focus accent goes on the last major word of the sentence, but it can come earlier in order to emphasize one of the earlier words or to contrast it with something else.
Intonation, in music, is a musician's realization of pitch accuracy, or the pitch accuracy of a musical instrument. Intonation may be flat, sharp, or both, successively or simultaneously.
Interval, melody, and harmony
The lower or upper pitch of an interval may be sharp or flat, or both pitches of an interval may be out of tune. If the lower pitch is sharp or the upper pitch is flat, the interval may be said to be flat given that as a whole it is too narrow; while if the lower pitch is flat or the upper pitch is sharp, the interval may be said to be sharp given that as a whole it is too wide. Intervals are conventionally measured from the bottom, as such in an interval that is too wide the upper pitch will thus be sharp. For example, the "flat fifth" of mean tone temperament. However, the interval itself may be in tune, in relation to itself (i.e. both notes of the interval are in tune in relation to each other), but flat or sharp as a whole and thus both notes of the interval will be out of tune. A melody or harmony is flat or sharp if it is too high or...