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We also gaze a couple of months ahead to this year's Swn Festival, a citywide celebration of intriguing leftfield music that dominates Cardiff's finest music venues over a whole weekend, from 17-20 October.

The first ruck of artists has been announced and it's already a remarkably tantalising prospect. Every year I hear unexpected wonders, fall in love with a bunch of bands I'd never heard of before, make new friends and gaze on in mystified wonder as the Silent Disco turns the Great Hall at Cardiff University into one of the strangest sights you will ever see...

Elsewhere in this week's show, Ben Hayes brings a new pressing of an old album in, with Merseybeat overtones.

There are debut plays for some fascinating new Welsh artists: Joey Trilliani, Royal, Him Again, Through Colour, Prints Jackson, Nineteen Fifty Eight, Foxgloves and The New Red.

Please send music as a download link to themysterytour@gmail.com or via the BBC Introducing Uploader.

ISLET - 'Tripping Through The Blue Room Part II'
Cardiff

CANDELAS - 'See - Saw Sinner'
Bala

JOEY TRILLIANI - 'No Pain'
Holywell, Flintshire

HELEN LOVE - 'Atomic'
Swansea

FUTURE OF THE LEFT - 'Perpetual Motives'
Cardiff

ROYAL - 'Far'
West Wales

QUEER'D SCIENCE - 'Punish You'
Llanfairfechan/Manchester

SEAZOO - 'No Wrenching Of Guts This Time'
Wrexham

ESTRONS - 'My Turn'
Aberystwyth/Cardiff

HIM AGAIN - 'Disparkle'
West Wales

Y NIWL - 'Dauddegtri'
Gwynedd

GEORGIA RUTH - 'Etrai'
Aberystwyth/Cardiff

BRIGHT YOUNG PEOPLE, THE - 'Woe'
Rhyl

THROUGH COLOUR - 'Daydream'
Anglesey/Manchester

YR EIRA - 'Cadwyni'
Bangor

SHHH… APES! - 'Painkiller'
Cardiff

TARSIERS - 'Camel'
Cardiff

STALIN'S STREET PARTY - 'A Moral Out'
Cardiff

DEAF CLUB - 'Lines And Limits'
Wrexham

CATFISH AND THE BOTTLEMEN - 'Rango'
Llandudno

CHANNEL SWIMMER - 'Forgetting You'
Cardiff

PRINTS JACKSON - 'Beauty Of The Living'
Cardiff

NINETEEN FIFTY EIGHT - 'Rapture'
Swansea

TEENAGE MAFIA - 'Holy Landfill'
Llanfairfechan/Manchester

RHODRI BROOKS - 'Lliwiau'
Cardiff

COLORLIST - 'Sun Song'
Cardiff Label

Y PLU - 'Sgwennaf Lythyr'
Bethel

COLORAMA - 'Lisa Lan'
Benllech

VESTALS, THE - 'Seventeen'
Cardiff

WITH BEST INTENTIONS - 'Heights'
Port Talbot

ALPHA MALE TEA PARTY - 'Truffles'
Connah's Quay/Liverpool

WICKET - 'Know Your Roots'
Cardiff

ORBITS! - 'Water & Bread'
South Wales Valleys

FOXGLOVES - 'Horns'
Cardiff

NEW RED, THE - 'No Tenby Sun'
Swansea

BEN HAYES - 'Spoken Contribution'
Ruthin

ROCKIN' HORSE - 'Biggest Gossip In Town'
Liverpool

SEN SEGUR - 'Lemonêd Cymylog'
Penmachno

JOY FORMIDABLE, THE - 'Silent Treatment'
Mold - Adam Walton & BBC Radio Wales