6th song on the book: John Patitucci's 60 melodic etudes, 54 more to go ...   Just went through the Db one with 5 flats on the staff.  Still very challenging, as I mostly memorized the song instead of sight reading it ... 

Bass straight into sound card into Quicktime player this time.  Looked like this is the most efficient way beside using mobile devices.  Audio level clipped a few times unfortunately ..   the next one will be better.

Youku