I believe this wish by playing in a group with three other m

I believe this wish by playing in a group with three other musician for almost ten years
这里的BY是什么意思,three other musician for almost ten

1.原句至少应为：
I believe this wish by playing in a group with three other musicians for almost ten years.
2.本身虽是一句语法完整的句子,但仍欠缺上下文,故只能试译如下(绝对不会风马牛不相及)：
我相信这一祝福,所以与另外三位音乐家一起在乐队里演出了将近十年.或：
我相信这一许愿,.
3.by 在这句中表“以某种方式”之意.by 用于此意的例子：
a.He learned some English by listening to the radio and watching TV.
(他通过听收音机和看电视学了些英语.)
b.They travelled across Europe by train/car.
(他们乘火车/开车游遍了欧洲.)
c.We went in by the front door.
(我们是从正门进去的.)
d.Do you wish to be paid in cash or by cheque?
(你是希望(我们)付你现金呢还是给你开支票?)
(注：除第一句被我略改动外,其余均为原文,来自于权威字典《Cambridge Advanced
Learner's Dictionary (新版)》,译文为我提供.改动后的第一例绝对无问题.)
4.”three other musicians for almost ten years“ 语义上根本就不是一块的(只是空间上在一块),
奥巴马都不知道啥意思,你当然就更不知道了.three other musicians” 与 playing in a
group 才为一体,即playing in a group with three other musicians.for almost ten years
表时间,说明playing这一行为的时长.
另：这个解答哪儿跟哪儿?!
C.playing see sb doing sth看到某人在做某事我看到一个音乐家在公司里正打鼓 选C,我能看到一位音乐家在公园里打鼔.l C.我看见一个音乐家