Taking a broader view, there are lots of stories, of people who are involved in a business, splitting off to form their own business, perhaps taking one or more colleagues with them, and dealing with the same or similar customers. The devil is in the details as to the ethics of it, not to mention the legality. I imagine a lot of "trades" businesses like carpentry and lawn care start this way.
Probably most people would frown on using the former employer's "stuff" to build the new company, where that stuff could include vendor and customer lists, price sheets, design details, manufacturing techniques, and so forth. On the other hand, almost every state guarantees a worker's right to ply their trade, which is in fact why things like non-compete agreements are either un-enforceable or even illegal in some states.
In the absence of written agreements or applicable laws, there's probably no bright line between ethical and unethical behavior in this regard. It sounds like your gut reaction is that the drummer's actions weren't entirely above board. I'll take that at face value. I'm not sure how much leverage you have, just because the music business is pretty loosey goosey.
I've seen similar things happen. I play regularly with a jazz trio that was once the first call rhythm section for a former BL. The drummer decided to start his own band business. On the other hand, none of us had any agreements with the former BL. We were strictly sidemen, and we also worked together on a lot of gigs with other BL's, in a town where all of the working jazz musicians know one another.
Are those musicians ripping you off, or merely plying their trade as they see fit? You have to follow your gut on that one. In my locale, every sideman is constantly networking and looking for business, when they're on any gig. But it works both ways -- they will also recommend players and gig opportunities to the bandleaders. I have a list of "first call" bandleaders to whom I forward requests when somebody is looking for a band.
About upright: There is no rational reason to play upright bass. Doing it solely for business reasons will lead to sorrow.
Probably most people would frown on using the former employer's "stuff" to build the new company, where that stuff could include vendor and customer lists, price sheets, design details, manufacturing techniques, and so forth. On the other hand, almost every state guarantees a worker's right to ply their trade, which is in fact why things like non-compete agreements are either un-enforceable or even illegal in some states.
In the absence of written agreements or applicable laws, there's probably no bright line between ethical and unethical behavior in this regard. It sounds like your gut reaction is that the drummer's actions weren't entirely above board. I'll take that at face value. I'm not sure how much leverage you have, just because the music business is pretty loosey goosey.
I've seen similar things happen. I play regularly with a jazz trio that was once the first call rhythm section for a former BL. The drummer decided to start his own band business. On the other hand, none of us had any agreements with the former BL. We were strictly sidemen, and we also worked together on a lot of gigs with other BL's, in a town where all of the working jazz musicians know one another.
Are those musicians ripping you off, or merely plying their trade as they see fit? You have to follow your gut on that one. In my locale, every sideman is constantly networking and looking for business, when they're on any gig. But it works both ways -- they will also recommend players and gig opportunities to the bandleaders. I have a list of "first call" bandleaders to whom I forward requests when somebody is looking for a band.
About upright: There is no rational reason to play upright bass. Doing it solely for business reasons will lead to sorrow.