Pitch is the singable 'how high or low' quality of a sound, distinct from noise you can only call high or low

The lecture separates pitch from mere frequency-height. Some sounds you can label high or low but cannot sing back — there is no note to latch onto (a hiss, a rumble). Other sounds have pitch: a definite, singable musical quality you can match with your voice and recognise. Pitch is therefore the perceptual property that makes a sound a note rather than just a high or low noise, and it is what music notation’s vertical axis represents. This distinction is foundational because everything that follows — scales, intervals, chords — operates on pitched notes, and it explains why a rough ‘scatter graph’ of high/low is not yet a usable representation of a tune.

Examples

A high piccolo tone and a low saxophone tone both have pitch — you can sing them back. A high hiss or a low rumble can be called high or low but has no singable note. On a stave the vertical axis places notes by pitch, higher up = higher pitch.

Assessment

Given several sounds, sort them into ‘has pitch (singable note)’ versus ‘has only high/low character (no note)’. Explain why only the pitched ones can be placed precisely on a musical stave.