Cello and double bass lessons have been filmed and posted on YouTube as part of a new project that aims to share good practice among instrumental teachers. The Art of Teaching has been launched by the UK's Musicians' Union and musicteachers.co.uk, and the lesson videos can be seen at musicteachers.co.uk/youtube. The videos include a cello lesson by cellist Leandro Silvera at the Royal College of Music Junior Department and double bass lessons by Geth Griffith at the Junior Royal Northern College of Music.