Thanks to The Heart of Worship click this link for short-Quick time music tuition (check out the archives for lots more!!) Those with Broadband will enjoy this more!
Here's a sampling of topics (probably especially relevant for BLC .. heheh!)
Not so basic Djembe
Vocal Tech - making sound, dynamics&adlibs, Vowel sounds, etc.
Tambourine and Shaker
Warmup and Technique - acoustic guitar, Developing rhythmic feel, etc.