Desmond's latest theme is 'Rainbow Connexion', as he uncovers music about colours.
BBC Radio 2
Desmond's latest theme is 'Buy British', as he plays British artists through the years.
This week, all Desmond's songs are on the theme of 'Numbers'.
For this week's theme of 'Town and Country', Desmond finds music about both lifestyles.
To mark HM the Queen's diamond jubilee, Desmond's picks this week are all from 1952.