7 The seven Italian vowel sounds: cross-section of mouth
and throat shapes, and graph showing tne effects of
their resolnance on the relative strengths of the harmonics
with the approximate pitch of the first two formants.
The mouth cavity diminishes from ee to oo (Italian i to u), while the generally larger throat cavity is at its smallest for ah The pitch level of the formants corresponds to these volumes in keeping with the rule that larger instruments favour a deeper sound. With imagination one may sense these vowel colours while playing the formants as tone clusters on the piano