Octave errors are common in the ide

Octave errors are common in the identifications of all the observers in every kind of clang tint, but are subject to much individual variation. They are more frequent in the more ac- curate observers with one notable exception, and more frequent with relatively easy clang tints. Baird distinguishes two stages in the process of identification, an initial stage which consists in a prompt naming of the note and a subsequent stage in which the observer names the octave to which the note belongs. These two responses are usually separated by an appreciable interval, and the degree of subjective assurance is less for the octave identification than for the name of the note.