Jerry T...

I'm primarily a singer... then programmer... then a chord player. The smallest I can get is this...

Shure Beta 58a
XLR cable
Sonar VS-100 to use as a track player and a mixer
TRS 1/4" to XLR cable
Powered speaker (RCF-310a)
Extension cable with 2 plugs

Then it's 2 hands to carry stuff in and 5 minutes to set up. No keyboard, just my voice.