Lab
vowel modification practice
Each level is a deck. Lines you answer well are scheduled further out each time you see them. Lines you miss come back soon. Each line moves through four states as you learn it: New, Learning, Familiar, Known.
progress saves per name
Pick a level to start
beginner START → Open modifications only. Monophthongs only. Practice opening single-vowel words without the complication of diphthong sustains.
intermediate START → Open modifications, diphthongs included. Same opening practice plus the diphthong sustains — /aɪ/, /eɪ/, /oʊ/, /aʊ/, /ɔɪ/ — modified on the dominant vowel.
advanced START → Open and cover modifications. Full vowel inventory. Both directions, monophthongs and diphthongs — what you'd encounter in real repertoire.