A great way to start a piece of any genre is with a cadenza. This can be done in many ways but I like the Chris Potter/Pat Metheny outside –> inside approach. Basically going harmonicaly around the houses to reach your home key. Here is an example of a cadenza for a piece in D. This is taken from Chris Potter’s ‘Children Go’ from his album ‘Travelling Mercies’.
My online portfolio of work as a session musician.