This week's show is now available via the BBC iPlayer. Please listen again any time between now and the start of the next programme.
The snowdrops are peeping out of the crisp packets and McDonalds' wrappers in the hedgerows. My daughter's potted daffodil grew about five inches in one day - which is an awe-inspring amount of biochemical effort. I wonder if it feels as knackered as I do, the morning after riveting a show together with my gob?
Anyway, there is a distinct whiff of spring in the air. I'm almost tempted to go gambol in the fields myself. Would do, if it wasn't for a dodgy left knee... the product of a bad tackle on the five-a-side pitch four years ago.
My dancing days are long behind me, sadly. Proper - jumping up and down, backflip, flour-on-the-sprung-wooden-floor dancing, anyway.
Spring manifests itself in this week's show via a number of first time plays for new artists: Kizzy Crawford, Just Jawsh, Roger Knox And Pine Valley Cosmonauts, Wicket, These Brittle Bones, Caredig, Derren Heath, Allan Horton and Climbing Trees.
Although Climbing Trees fall victim to a toilet-related accident... in that, during their marvellously expansive, gospel-influenced recording, I had to leg it to the loo - always a fraught incident during a live show - when I got back into the studio, with seconds to spare to line the next track up, I ejected the wrong CD... rudely curtailing the wonderful spell they'd cast over the entire nation.
I will make amends next week, Climbing Trees.
I'll wear a nappy, or something.
If that image hasn't driven you away: elsewhere on the show, godfather of the Welsh underground - Alan Holmes - introduces us to a Beatles-related curiosity from his massive sack of half-forgotten demo tapes, like a bi-weekly, Bangor-based, unbearded Santa Claus of lo-fi excellence.
Lara Catrin translates something beautiful by Colorama.
Ben Hayes brings inspiration in the form of Pete Wylie's Wah!
If you have music for us, please submit it via the BBC Introducing Uploader. Gig info and any correspondence to themysterytour@gmail.com.
Oh, and before I disappear, can I recommend that you watch Searching For Sugar Man, a brilliant, humbling and inspirational film about the life and music of Sixto Rodriguez. His is a unique and moving story, told with great warmth and expertise by the filmmakers. Just excellent.
ARTERIES, THE - 'Bleed Away'
Swansea
COLORAMA - 'Do The Pump'
Benllech
MASTERS IN FRANCE - 'Flexin''
Caernarfon
KIZZY CRAWFORD - 'The Starling'
Cardiff
GALLOPS - 'Jeff Leopard (Single Mix)'
Wrexham
PLO - 'F*ck Space & Lazers'
Cardiff
JUST JAWSH - 'Beep Boop'
Llangennech
STAGGA - 'Hoesss'
Cardiff
IAN HOLMES - 'Of Mice And Mentality'
Bangor/Nefyn
ROGER KNOX AND PINE VALLEY COSMONAUTS - 'The Land Where The Crow Flies Backwards'
Newport/Australia/Chicago
UNDERSOUND - 'Wish You Were Here Feat. Intermet'
Caerphilly
SPARROWHAWKS - 'Magpie Ladies'
Llangollen/Deeside
EARTH, THE - 'I Deserve U'
Cardiff
JOY FORMIDABLE, THE - 'Silent Treatment'
Mold
BODHI - 'Culture'
Cardiff
WICKET - 'Get In, Ms. Riley'
Cardiff
GLOBAL PARASITE - 'Occupy Tavistock'
Rhyl
THESE BRITTLE BONES - 'Holocene'
Swansea/Singapore
ALAN HOLMES - 'Bicycles, Rollerskates And You'
Bangor
ALAN HOLMES - spoken contribution
Bangor
KEVIN McARDLE - 'Beatles In Bangor'
Bangor/Nefyn
QUEER'D SCIENCE - 'Vaginal Wrath'
Llanfairfechan/Manchester
DROWNERS, THE - 'Long Hair'
Rhondda Valleys/New York City
NO CHOICE - 'Airwaves'
Cardiff/Bridgend
CAREDIG - 'Don't Forget'
Tregaron
WE ARE ANIMAL - 'Royal Wolf'
Bethel/Caernarfon
WOLFCHILD - 'Beatnik'
Cwmbran
BEARD OF WOLVES - 'Wet Mouth'
Deeside
STRAIGHT LINES - 'Escapology'
Pontypridd/Pyle
LARA CATRIN - spoken contribution
Bangor/Cardiff
COLORAMA - 'Mas Ar Y Dre'
Benllech
LAURENCE MADE ME CRY - 'Paper Chains'
Cardiff
QUIET NOISE - 'Jigsaw Puzzle'
Pembrokeshire
EATON - 'I Got A Feeling (Feat. Fernquest)'
Swansea/Newport
DERREN HEATH - 'Within'
Pembrokeshire
TRWBADOR - 'Sun In The Winter [Album Version]'
Camarthen/Cardiff
SOFT-HEARTED SCIENTISTS - 'False Lights'
Cardiff
BEN HAYES - spoken contribution
Ruthin
WAH! - 'The Seven Thousand Names Of Wah!'
Liverpool
STRANGE NEWS FROM ANOTHER STAR - 'Best Friends And Users [Live]'
Cardiff
LIFTING GEAR ENGINEER - 'New Normal'
Swansea
BLOODFLOWER - 'Indigo'
Unknown.
ALLAN HORTON - 'Anniversary'
South Wales
CLIMBING TREES - 'Burning Candle'
South Wales Valleys
SWEET BABOO - 'Let's Go Swimming'
Bangor/Cardiff
IFAN DAFYDD - 'Celwydd (Feat. Alys Williams)'
Llanrug
