From the Wikipedia entry about the saxophonist known as Kenny G:
In 1997, Kenny G earned a place in the Guinness Book of World Records for playing the longest note ever recorded on a saxophone. Kenny G held an E-flat for forty five minutes and 47 seconds in the Hopkins-Bright Auditorium (named after his two friends) at J&R Music World in New York City.
What a treat that must have been.
We’ll have to settle for a minute and twenty seconds of A-flat from Harry Carney.
The interested onlooker was Johnny Hodges, so fascinated that he almost forgot to join the ensemble for the big finish.
Have a good weekend.