Adding to Pat's excellent suggestion you could DL some classical quartet MIDIs and study them. You google/bing classical quartet MIDIs. Here is one page that I found:

http://stringsound.com/Page11.html


Life is short so make sure you spend as much time as possible on the Internet arguing with strangers.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware