Katie Derham presents Proms Extra, the weekly Proms magazine show that takes a look at all things Proms during the current season.

This week the focus is on Vaughan Williams' The Lark Ascending, taken from the Ten Pieces II Prom aimed at older school children, and the haunting spirituals from Tippett's A Child Of Our Time.

Plus David Owen Norris hits another Chord of the Week.