Critical Mass (Wed 9pm)

05/08/2025

Tonight on Critical Mass the Tomb of Brendoom returns with a show bigger than a gargantuan mammoth mountain.
Jethro and Callum from Bloodwood will be in the studio to talk about their debut album Dark Simulator.
Plus new doom, stoner, sludge and heavy psych releases from Stoned Jesus Castle Rat Margarita Witch Cult Dirty Pagans Psychic Mass Horus Slomatics Droid Paralyzed Goya Magmakammer and more

01/08/2025

Been digging this? The latest from Margarita Witch Cult out on HEAVY PSYCH SOUNDS.

9 track album

25/07/2025

Some seriously heavy doom at NYP. The latest full length from GORTHON.

9 track album

23/07/2025

We are saddened and shocked at the passing of the pioneer of Heavy Metal Ozzy Osbourne.
Tonight Critical Mass will honour one of the great showmen of our time with a full show of requests, retrospectively delving into Ozzy/Sabbath classics to remember and reminice. RTRFM 92.1 9pm

15/07/2025

If you like your metal traditional, melodic or just plain fun, join us tonight on RTRFM 92.1 as Cam Crimson hosts THE QUEST edition of Critical Mass (Wed 9pm).

Start with power, prog, symphonic and old school thrash, add a sprinkling of melodic death, and you have the recipe for THE QUEST. Streaming live at https://rtrfm.com.au from 9pm on the third Wednesday of every month.

Discover RTRFM, Perth's independent community radio station. Tune in for unique shows, local music, and community stories.

10/07/2025

Playlist from last night has now been updated. Restream available here:

https://rtrfm.com.au/shows/criticalmass?date=2025-07-09

Many thanks to Nouthing, Mortuus, Ragnarok & Uhtceare from TFLHUNDRN for coming into the studio and sharing their thoughts. Chuck 'em a like here:

https://www.facebook.com/profile.php?id=61575776553487

we are a blackmetal band dug up from the Graves of Pertn to spred fear in the name of under dog

09/07/2025

Join us tonight on Critical Mass (Wed 9pm) for a full-on black metal assault! We have TFLHUNDRN joining us in the studio to give us the good oil on their expanded line-up ahead of their debut live appearance at STOP THE VIOLENCE 8.

The unholy ritual begins tonight 9pm on RTRFM 92.1 - tune in or live stream at https://rtrfm.com.au

18/06/2025

🏉Origin afterparty on Critical Mass (Wed 9pm) in an hr, featuring Origin.
If times permit, possibly a few other bands as well.. 📻
RTRFM 92.1 or online

Discover RTRFM, Perth's independent community radio station. Tune in for unique shows, local music, and community stories.

03/06/2025

Looking for the perfect soundtrack for a cold wet winter night?
Then tune into RTRFM 92.1 for Tomb of Brendoom on Critical Mass tonight at 9pm with more songs about witches, wizards, mammoths, mountains and bongs then you will hear anywhere else on the airwaves.
New music from Witchcraft KADAVAR Pelican GOUTS Froglord WitchCliff Komatsu Kal-El and Demonic Death Judge

29/04/2025

Sick of being annoyed and pummelled day after day with stupid election crap? Give yourself the night off and tune into 2 hours of heaviness on Critical Mass (Wed 9pm)!

We've got the latest and greatest from Hidden Intent, Drudkh (Official) and Cryptopsy, local goodness from Brahmastra, Magic Chicken Fudgetoe, Celestial Burial and WitchCliff, plus Psychlona, Scour, Déhà, 1349 (Official) and heaps more.

Cast your vote for screaming riffs, blistering solos and wholesome family goodness (hehe, that one WILL be a broken election promise) by tuning into RTRFM 92.1 from 9pm tonight, or streaming live from https://rtrfm.com.au/

Authorized by R J Dio for the Critical Mass party, Mt Lawley.

09/04/2025

Tonight on critical mass I'll be joined by the guys for Allocer to talk new EP's, up coming gigs and find out what makes these chaps do what they do🤘 plus the usual helping of local metal.

Tune in from 9 tonight on RTRFM 92.1

25/03/2025

Tomb of Brendoom returns tonight to Critical Mass on RTRFM 92.1
2 hours of the best new releases and news of doom, stoner, sludge and heavy psych.
Latest releases from Witchcraft Magic Chicken Fudgetoe Elephant O**y Blackwater Holylight WitchCliff Conan The Death Wheelers Year of the Cobra Ghostsmoker Acid Magus and more