I have a few of the Native Instrument products and I'm fairly impressed with them....

Having said that: http://www.native-instruments.com/en/products/komplete/orchestral-cinematic/session-horns/

Playing live, I think this will be a better option than the "horns" synth patch you would likely find in your keyboard banks.....

Run a good DAW in your laptop and be sure to use a quality interface with ASIO drivers since you will need this to run in real time with extremely low latency.


You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.