I cannot find Improvising study 4?

Hi Dave,

In your Level 4 video in Accompaniment study 4 "Chording under vocals", you mention that there are some V-IV-I licks I can use in 'Improvising study 4', but I cannot find Improvising study 4. I have searched the lessons and it shows Improv study three and then the next seems to be study seven. Could you please point me in the right direction.

Many thanks

Saul