Chinese word for X chair in a musical group when it isn't 1st or 2nd chair In English, in an orchestra one might say that one's chair position is 2nd Violin, 5th chair. The 2nd Violin part is easy to say: 第二小提琴. But the 5th chair part is troubling. My question is the Chinese way to say X chair where X is larger than 2?

I've asked a number of native Chinese speakers but they were also stymied. I'm aware that 1st chair and 2nd chair are 首席 and 副首席.

EDIT: What I mean by chair is a ranking of skill within the section. It is not very related to the row. An example 


  (1st row contains 1violin-1stchair, 2v-1c, 1v-2c, and 2v-2c)


can be found here: http://www.violinist.com/discussion/response.cfm?ID=6444
You can just use 第X席. E.g.2nd violin 5th chair 第二小提琴手第5席. 

You rarely saw it probably because if the x>2, they probably do not feel that proud. And no matter 第3席 or 第9席, even the 副首席 does not mean too much to the non-expert audiences (in China)--the spotlight is only on the 首席第一小提琴手.