Teacher's book. Two at a Time is a groundbreaking programme for instrumental teaching. Sarah's famous fun approach starts from scratch - absolutely no knowledge is required on the part of the pupil. The book enables the teaching of any number of flutes and clarinets to be taught at the same time and encourages pupils to play together from the very start. Aided and abetted by Sarah's unique, effervescent accompaniments everyone will sound great from the very first note.