This week's show is now available via the iPlayer. Please visit the link any time between now and the start of the next programme.

Soft-Hearted Scientists' music has been an enduring source of wonder for my ears over the last eight years. They've eschewed every bandwagon that has passed through town, and - like the finest artists - focused solely on their own vision: songs of innocence in spite of the world raging around them.

This three song session was recorded at home - as many of their greatest songs have been over the years. There are few people who know how to wield a 12 string, a Bontempi rhythm section and the most evocative analogue synth sounds with as much skill as Nathan Scientist. A real treat and sanctuary.

Huw Williams comes in to remind us of Sandy -- any facts / memories or recollections of the band would be gratefully received.

Lara Catrin translates some Ty Gwydyr for us.

Ben 'Soundhog' Hayes mourns the passing of Deep Purple's Jon Lord - rock's undisputed king of the Hammond organ.

And in between all of the talking bits, there is excellent music from all over Wales. We have début plays for: Pulse Atlantica, Fflur Dafydd, The Dukes, The Knox, Jack Barnett, Hannah Amy and Memory Clinic.

Please send demos / new releases / all correspondence to: themysterytour@gmail.com (download link or high quality .mp3 preferred, please), or via the BBC Introducing Uploader.

Retweets of the iPlayer link earn you off chance booze tokens (or dandelion and burdock tokens, if you're underage). These can be redeemed if you see me in your local / convenience store.

Next week, an amazing live set and multicultural collaboration between 9Bach & the Black Arm Band recorded at Y Galeri in Caernarfon last week.

Show stats:

• 867 different songs
• 1113 total
• 539 Artists in 30 shows since 1 January 2012
• Songs per show: 37
• Unique artists per show:18
• Welsh: 95%
• Cymraeg: 10%

Many thanks / diolch o galon, Adam Walton.

HARRY KEYWORTH - 'Above The Head'
Hebron, Pembrokeshire

WE'RE NO HEROES - 'Ghost Coast'
Cardiff

SŵNAMI - 'Eira'
Dolgellau

COLORAMA - 'Delaware'
Benllech

EUROS CHILDS - 'I'm Seeing Her Tonight'
Pembrokeshire

DEAF CLUB - 'Moving Still'
Wrexham

HUW WILLIAMS - 'Spoken Contribution'
Swansea

SANDY - 'Bright Lights'
?

SOFT-HEARTED SCIENTISTS - 'Unholy Ghost'
Cardiff

PULSE ATLANTICA - 'Blows My Mind'
Cardiff

JOE BLOW - 'Iguarna Spitz [ Radio Edit ]'
Barry

HALF AVIAN - 'Future Proof'
Mold

HUW M - 'Dyma Lythyr [ Remics Y Pencadlys ]'
Pontypridd

BOY ROYALS, THE - 'Summer's Playground'
Newport

FAMILY OF THE YEAR - 'Diversity'
Wrexham / L.a.

FFLUR DAFYDD - 'Y Ferch Sy'n Licio'r Gaeaf'
Camaerthen

BRIGHT YOUNG PEOPLE, THE - 'Hang Up ( Radio Edit )'
Rhyl

FUTURE OF THE LEFT - 'Beneath The Waves An Ocean'
Cardiff

BASTIONS - 'Grief Beggar [ Radio 1 Session Version ]'
Anglesey

SOFT-HEARTED SCIENTISTS - 'We'll Go Walking'
Cardiff

DUKES, THE - 'Shifting Sands'
Caldicot

KNOX, THE - 'In My Head'
Cardiff

JACK BARNETT - 'Counting On You'
Cardiff

HANNAH AMY - 'Deer'
Newport

FATHER PUMPKIN - 'Sounds Like...'
Wales

MALCOLM GALES - '1001001'
Swansea

SKINFLICK - 'Becoming Geology'
Bangor

CIAN CIARAN - 'Martina Franca'
Bangor

SUE DENIM - 'Bicycle'
Bangor

WE ARE ANIMAL - 'Indus Seal'
Bethel / Caernarfon

LARA CATRIN - 'Spoken Contribution'
Bangor / Cardiff

TY GWYDYR - 'Cariad Yn Cryfhau'
Bangor

DAN AMOR - 'Mehefin'
Penmachno

STAGGA - 'Timewarp'
Cardiff

GOLDEN FABLE - 'Sugarloaf'
Ewloe

FJORDS - 'Shinjuku'
Cardiff

MEMORY CLINIC - 'Why Did She Run Far Away?'
Anglesey

BEDFORD FALLS - 'Prick'
Cardiff

SOFT-HEARTED SCIENTISTS - 'Fly Into The Sun'
Cardiff

BEN HAYES - 'Spoken Contribution'
Ruthin

DEEP PURPLE - 'No One Came'
Hertford