Every Thursday in Belfast
Kicks off at 19:30
Entry £5.00
10-minute slots
PA provided — BYO instrument
Part of the Belfast open mic directory
Belfast · Every Thursday · £5.00
Accidental Theatre Open Mic
Belfast open mic at Accidental Theatre — listed on Google Places. Schedule details below are pending venue confirmation; check the venue's own listings before turning up.
Open mic at a glance Accidental Theatre · Belfast
Thursday
Open mic night
Apr 2026
Listed since
03 Jun
Last verified
£5.00
Entry
10 min
Slot length
Verified
Listing status
Plan your open mic night
Check the venue, or find more open mics in Belfast.
Last updated: 3 June 2026
Accidental Theatre Open Mic — Quick Facts
Belfast open mic at Accidental Theatre — listed on Google Places. Schedule details below are pending venue confirmation; check the venue's own listings before turning up.
The Details
Everything you need before you turn up
DayThursday
Start19:30
Sign-up19:30
Slot length10 min
Entry£5.00
Capacity–
Performer typesMusic
Sound engineerBYO / hire on the night
Where
Accidental Theatre12-13 Shaftesbury Square
Belfast BT2 7DB
Belfast — check venue website for parking and nearest station.
Contact
Sign-up via online
Host: in-house team
Highlights
£5.00 entry
PA system provided
Sign-up via online
Music welcome
How do you rate this open mic?One tap, no sign-up required.
Spotted something wrong with this listing?Closed, moved night, different start time? Let us know and we'll re-verify within 48 hours.
What's on Stage
Equipment and backline available at this venue. We verify and update this section regularly.
PA + monitors
Drum kit
Guitar amp
Bass amp
Keys / keyboard
Vocal mics
In-house engineer
About This Open Mic
The Night
Accidental Theatre's Cosmic Jam is a wonderfully chilled open-mic-and-jam night on the first Thursday of every month, starting at 7.30pm (BYOB) at their Shaftesbury Square home. It's built for experimentation — there's a full backline of instruments and mics in the room, slots run 10 minutes or less, and there's space to jam with whoever else turns up. A performance slot is £5, booked online in advance, and the team record every set, handing you the stems and video for free afterwards.
About Accidental Theatre
Accidental Theatre is an independent arts venue at 12–13 Shaftesbury Square in central Belfast (BT2 7DB) — a refuge for collaborative work spanning theatre, music, art, dance and unclassifiable live performance. The main theatre seats around 100 (plus a 30-capacity Book Bar), and the venue runs a monthly experimental music night of short sets with room to chat and move, alongside gigs, comedy and theatre. A flexible, artist-led black-box space welcoming to original and emerging performers.
Planning Your Thursday Night
Arrive by 19:30 to sign up for a slot. Entry is £5.00 and the open mic typically runs until late. A PA is provided — bring your own instrument and amp.
Part of the Belfast live music scene.
What should you charge for paid gigs?Most open mic musicians are ready for paid work sooner than they think. Check live UK rates by role, city, and venue size.
Try the Rate CalculatorFind Accidental Theatre
12-13 Shaftesbury Square, Belfast BT2 7DB
Common Questions
Seven things people ask before turning up at Belfast's Accidental Theatre open mic.
Sign-up via online. See all Belfast open mic nights.
PA + vocal mic provided. BYO instrument and amp.
10 minutes per act — typically 3 songs solo.
Entry is £5.00. For free alternatives, filter the directory.
Solo and duo acts work best given the gear available; ask the host before bringing a full band.
12-13 Shaftesbury Square, Belfast BT2 7DB.
Mostly fellow musicians, friends and Belfast regulars across the Belfast open mic scene. Belfast open mic crowds tend to listen attentively.
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