Campaigners warn live music is under threat unless planning laws are changed to protect venues from complaints about noise.
More than 7,000 people have signed a petition to call for more protection for clubs in Womanby Street, near Cardiff Castle.
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The owners blamed financial pressures and uncertainty over possible developments nearby.
Venue owners say current planning laws are unfair, and leave established venues vulnerable to complaints from the occupants of new schemes.
In Carmarthen, there's another story of struggle and survival.
The Parrot music bar closed three years ago.
A crowdfunding campaign to help it reopen raised £11,000.
With the booking and promotion of gigs organised by a collective, the team operating the venue day-to-day are trying to broaden what it offers by launching a new cafe and bar and expanding the record shop upstairs.
Campaigners want to see a special designation for areas like Womanby Street to limit potential residential schemes.
They're also calling for a change to the planning system similar to England, where the responsibility to limit noise will fall on the developers of new premises.
Cardiff Council says it has to follow national planning guidelines, and doesn't have the power to designate Womanby Street "as an area of cultural significance".
The Welsh Government says it has met the Music Venue Trust to hear its arguments.
Campaigners warn that's a contribution that can't be taken for granted...