Vowels
Positioned by tongue height and how far forward the tongue sits. Where two symbols share a spot, the one on the right is rounded.
Pulmonic consonants
Made on an outward breath. Columns run from the lips to the glottis; in each column the left symbol is voiceless and the right one voiced.
Non-pulmonic consonants
Powered by something other than the lungs — a click of the tongue, a pull of the larynx, a squeeze of trapped air.
Other symbols
Sounds made in two places at once, plus a few that don't fit the main grid.
Affricates
A plosive released into a fricative, written as two symbols joined by a tie bar.