surprisingly poorly - scoring around 50%.
after a few weeks, i improved my score to a steady 70%. i only have time to go up to a score of 20 points as i repeat the same interval a number of times before deciding what it is.
this morning i scored 81% for 20 correct, a step up from my usual 70, which is exciting.
i find that i make more mistakes early on in each session and get really good toward the end.
plan is to continue with this until i get 100% for all 4. i also want to reduce the number of times that i have to listen to each interval before 