@Ashley *******
no and yes.
If you are a massive band bringing your crew and touring, there is serious legal costs involved.
Requiring multiple visas and entities involved.
Movie production companies do it all the time but have setup the necessary infrastructure here.
In the end it is very lucrative for them.
If you are "Bob the guitar guy" and want to set up a mobile music company, to freelance it's different.
There is a minimum investment of 2 million baht and Thai employees, freelance contracts, etc. required to meet regulations.
There are creative lawyer/agent/accountants that can set you up.
Would you be 100% legal... sort of.
You need to do some research to understand the nuances and "workarounds".
Many, many, performers do it for years without being legal and never have an issue....until you do.
And then it's a mess if you can't find a "workaround". $$$