In the U.S., musical works originally published in 1929 or earlier are typically considered public domain. You’re usually allowed to distribute your own arrangement of such a work, provided no new copyrights apply.
However, be cautious: although the composition may be public domain, most sound recordings are not, and sampling old recordings can infringe on those rights.
To confirm public domain status, check resources like public domain song databases.
Failing to secure proper licensing may result in removal from streaming services or legal consequences.