While looking around youtube at the few recordings we have of them, I had a few questions.
1. Why do some Model 20s have 5 lovures like this one: https://www.youtube.com/watch?v=TEDdWTOCBDE
but some only have 4 like this one https://www.youtube.com/watch?v=dEGE9ELflwc ?
2.Are there any recordings of a 9/12 or 10/12 model 20 anywhere?