Mattias Holmgren - Invidious

Mattias Holmgren

What happens when a pro composer hears your favorite game music?
I’m Mattias Holmgren (aka Gelhein), a Swedish producer and designer with 25+ years of industry experience. On this channel, I take deep-dive reactions into Game OSTs, breaking down the composition, sound design, and emotional impact from a professional perspective.

Beyond the music, I’m here to guide YOU in music production and creativity. I share the tricks I’ve learned over two decades to help the next generation of creative producers.

🚀 Grab my FREE Creative Booster Guide: www.morningdewmedia.com
📬 Business Inquiries: morningdewmedia@gmail.com

Join me at the intersection of games, music, and design. Subscribe for a deeper look at the sounds you love!

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2:26:41

DELTARUNE Chapter 2 OST Reaction | What Inspired Toby Fox?

Mattias Holmgren

Shared 2 days ago

14K views

2:00:04

DELTARUNE OST: How Toby Fox evolved (Composer Reaction & Analysis)

Mattias Holmgren

Shared 4 days ago

18K views

1:22:01

The Finals OST: Composer reacts to all Season Trailers

Mattias Holmgren

Shared 4 days ago

6.1K views

2:27:52

MONSTER HUNTER WILDS OST: Composer Reacts to MIGHTY Scores

Mattias Holmgren

Shared 1 week ago

5.9K views

2:18:05

UNDERTALE OST: Composer Reacts to YOUR Most Requested Songs LIVE

Mattias Holmgren

Shared 1 week ago

30K views

2:55:21

COMPOSER'S First Time Hearing MONSTER HUNTER WORLD OST (Blind Reaction)

Mattias Holmgren

Shared 2 weeks ago

9.9K views

2:38:59

BLASPHEMOUS OST Listening Event (Composer Reacts & 2026 Vinyl Release)

Mattias Holmgren

Shared 2 weeks ago

1.6K views

1:56:26

Composer Reacts: The Genius of Minecraft OST (Nostalgia Trip)

Mattias Holmgren

Shared 2 weeks ago

40K views

2:14:31

Silksong’s Secret Boss: Fighting THE PHANTOM

Mattias Holmgren

Shared 2 weeks ago

409 views

2:19:50

Why Pharloom Sounds Different: A Composer’s First Playthrough of Silksong

Mattias Holmgren

Shared 3 weeks ago

396 views

2:34:36

Nightreign OST Reaction Part 2 | Why the Music feels so Magical (Composer Analysis)

Mattias Holmgren

Shared 3 weeks ago

2.3K views

2:40:47

Baldur's Gate 3 OST is DRAMATIC | Composer Reaction & Analysis (Part 2)

Mattias Holmgren

Shared 1 month ago

2.4K views

2:28:33

Baldur's Gate 3 OST: Composer Reaction & Analysis

Mattias Holmgren

Shared 1 month ago

4.1K views

2:28:56

Hades II OST rhythms are MAGICAL (Composer Reaction & Analysis)

Mattias Holmgren

Shared 1 month ago

5.2K views

2:31:21

Dark Souls 3 OST Listening Event (Composer Reaction & Analysis)

Mattias Holmgren

Shared 1 month ago

19K views

2:47:32

ELDEN RING Nightreign OST Listening Event (Composer Reaction & Analysis)

Mattias Holmgren

Shared 1 month ago

28K views

1:39:58

Verso's Drafts Reaction (6 NEW Clair Obscur songs!)

Mattias Holmgren

Shared 1 month ago

5.5K views

42:14

Best Score And Music at Game Awards 2025 (composer Reaction)

Mattias Holmgren

Shared 1 month ago

1.5K views

24:41

I CAN'T BELIEVE IT! Clair Obscur Wins GOTY 2025!

Mattias Holmgren

Shared 1 month ago

2.4K views

2:41:52

Elden Ring OST: Composer Reaction & Analysis

Mattias Holmgren

Shared 1 month ago

13K views

2:05:05

Shadow Of The Erdtree OST Reaction & Analysis

Mattias Holmgren

Shared 2 months ago

18K views

2:24:21

Xenoblade Chronicles 2 Music BROKE ME... (Composer Reaction & analysis)

Mattias Holmgren

Shared 2 months ago

8.9K views

2:26:55

The most beautiful area yet? Ancient Sanctuary music analysis | Clair Obscur (Part 3)

Mattias Holmgren

Shared 2 months ago

1K views

1:59:37

Composer Analyses the music of Spring Meadows & Flying Waters | Clair Obscur (Part 2)

Mattias Holmgren

Shared 2 months ago

891 views

1:56:36

Composer Reacts & Plays: Clair Obscur Prologue (Lumière) | Part 1

Mattias Holmgren

Shared 2 months ago

4.8K views

2:10:16

Let's Listen to FINAL FANTASY OST, FF7 REMAKE and more (React & Quiz with special guest!)

Mattias Holmgren

Shared 2 months ago

3K views

2:09:20

Why Bloodborne’s Music is a Masterpiece (Part 2)

Mattias Holmgren

Shared 2 months ago

7.3K views

2:25:17

Why Bloodborne’s Music is a Masterpiece | Composer Analysis

Mattias Holmgren

Shared 2 months ago

20K views

1:02:48

The Arc Raiders OST (Composer Reaction)

Mattias Holmgren

Shared 2 months ago

15K views

2:53:21

Nier:Replicant OST Listening Party (composer reaction)

Mattias Holmgren

Shared 3 months ago

7.1K views

1:44:22

Composer plays Silksong: Moorwing boss & exploring Greymoor

Mattias Holmgren

Shared 3 months ago

495 views

2:10:29

Witcher 3 OST – Cozy Composer Reaction

Mattias Holmgren

Shared 3 months ago

11K views

2:55:05

Listening to Your Favourite Game Music P2 (composer reaction)

Mattias Holmgren

Shared 3 months ago

3.8K views

1:48:03

Listening to Your Favourite Game Music P1 (composer reaction)

Mattias Holmgren

Shared 3 months ago

4.8K views

2:20:47

Omnisphere 3 is HERE 👀

Mattias Holmgren

Shared 3 months ago

2.3K views

31:18

I’m playing Ghost Of Tsushima: Beach siege

Mattias Holmgren

Shared 3 months ago

261 views

2:18:52

Ori and the Blind Forest OST makes me CRY (it's so beautiful!)

Mattias Holmgren

Shared 3 months ago

1.2K views

2:32:26

God of War Ragnarök OST - Emotional Music Reaction & Breakdown

Mattias Holmgren

Shared 3 months ago

4.1K views

2:16:50

Let's Listen To The Nier:Automata OST

Mattias Holmgren

Shared 3 months ago

14K views

2:45:59

Let's Listen To The Silksong OST

Mattias Holmgren

Shared 4 months ago

59K views

1:57:55

WE ARE LISTENING TO CLAIR OBSCUR: EXPEDITION 33 Part 2 (Your Requests)

Mattias Holmgren

Shared 4 months ago

7.2K views

1:58:32

WE ARE LISTENING TO CLAIR OBSCUR: EXPEDITION 33 (YouTube Requests)

Mattias Holmgren

Shared 4 months ago

19K views

1:06:51

Soliste: The NEW KING among Solo String VSTs - Mattias LIVE with Osmose MPE keyboard

Mattias Holmgren

Shared 6 months ago

1.8K views

1:09:19

SERUM 2 is here - What's New LIVE STREAM 🔥

Mattias Holmgren

Shared 10 months ago

810 views

1:58:25

🔥Live Epic Music Creation - Orchestral Soundtrack in the making!

Mattias Holmgren

Shared 10 months ago

731 views

2:34:31

Composing Game Music Livestream

Mattias Holmgren

Shared 11 months ago

581 views

1:32:26

Bitwig 5.3 LIVESTREAM // New Tools + Giveaways 🎁

Mattias Holmgren

Shared 1 year ago

1.2K views

1:28:21

50K Special Live Stream: Make Music, AMA + 2x Falcon VST Giveaway

Mattias Holmgren

Shared 1 year ago

435 views

1:16:54

The Dilemma Of YouTube & Music Making #Livestream

Mattias Holmgren

Shared 1 year ago

497 views

1:06:41

Bitwig 5.2 & PHASE-4 for POWERFUL phase modulation (Streamed 2024-08-21)

Mattias Holmgren

Shared 1 year ago

895 views

46:54

Bitwig, ATOMS and everything between...

Mattias Holmgren

Shared 1 year ago

847 views

1:42:19

Making Music With You LIVE

Mattias Holmgren

Shared 2 years ago

819 views

1:55:29

Is UVI Falcon 3 The Omnisphere Killer?

Mattias Holmgren

Shared 2 years ago

626 views

1:51:00

Making Music & trying New Plugins E02

Mattias Holmgren

Shared 2 years ago

898 views

1:31:25

Making Music and Trying New Plugins

Mattias Holmgren

Shared 2 years ago

737 views

1:23:18

Peteris Vasks Strings Library from Orchestral Tools🔥 (First Look)

Mattias Holmgren

Shared 2 years ago

1.3K views

1:55:12

Master Your Mixes with Smartlimit - Testing Audio Plugins

Mattias Holmgren

Shared 3 years ago

515 views

1:54:59

FL Studio 21 + Zebra Legacy, Apple M1/M2 + GIVEAWAYS 🎉❄⛄

Mattias Holmgren

Shared 3 years ago

2K views

1:16:21

Bitwig 4.3 new FX Convolution, Delay+ live stream 20220510

Mattias Holmgren

Shared 3 years ago

2.9K views