Instructing is my full-time job, 7 days/week. 
I usually have availability on most days if you have flexibility.

I schedule lessons for any day but Tues (but you can call Tues to schedule!)

• Tuesday, Wednesday, and Thursday :  9:30 AM to 8:45 PM Eastern (also, sometimes Mon and Tues evening)
• Monday, Friday, Saturday, and Sunday:   9:30 AM to 6 PM:  (weekend evenings rarely on short notice only)
• My limit is 4 hours of lessons per day,
• I often give extra time so please allow 30+ minutes between lessons, e.g. if I have a lesson 11-noon, next one is 12:30 or later, thanks
• I require a phone call (610-649-0750) or Skype call ("danheisman") to schedule a first lesson