It’s David  from Denmark. I have a question for you. I play both tenor and alto saxophone, which i think is great!
I practice around 3 hours a day, but is one hour and a half for each instrument enough when playing to types?
Thanks for this service, i am looking forward to hear/see more.
Good to hear from you. I would say that many of the things on alto and tenor that you practice will transfer easily between the two horns. You should do long tones on both instruments though, since the tone and your embouchure is going to be different between them. Do you play both horns with the same group or in separate groups?