Uploaded April 2026 | Updated September 2026, 2 weeks ago
This episode kicks off a 5‑part series on pure FM programming with the Korg Opsix. You’ll learn what FM actually is, how operators behave as carriers and modulators, how algorithms shape the sound, and how to build your first usable FM patch from scratch. Perfect if you’re coming from subtractive synthesis and want to finally “get” FM.
⏱️ Timestamps
0:00 – Intro
0:21 – What FM synthesis actually is
0:55 – Operators vs oscillators
1:26 – Carriers and modulators explained
2:04 – Visualizing FM with the Opsix analyzer
2:44 – Frequency ratios and LFO‑like modulation
3:48 – Moving into audio‑rate modulation
4:24 – Creating harmonics and bell tones
5:01 – Understanding algorithms on the Opsix
6:14 – Choosing the right algorithm for the sound
7:46 – Building a simple 2‑operator patch
8:27 – Carrier and modulator envelopes
9:09 – Brass‑like and string‑like timbres
10:02 – Layering multiple operator pairs
11:05 – Detuning stacks for width
11:38 – Adding percussive transients
12:03 – Using Opsix effects (chorus, delay)
12:57 – Why multi‑layering works for EPs, basses, and more
13:13 – What’s coming in Part 2 (ratios, fixed frequency, EP patch)
🎯 What You’ll Learn
How FM differs from subtractive synthesis
How operators interact to create complex harmonics
Why ratios matter for tone shaping
How to pick algorithms intentionally
How to build a usable FM patch with envelopes and modulation
How layering operator pairs creates EPs, bells, brass, and basses
📢
If you’re enjoying this Opsix FM series, hit Like, subscribe, and turn on notifications so you don’t miss Part 2 — where we dive into frequency ratios, fixed frequencies, and building a classic FM electric piano.
This episode kicks off a 5‑part series on pure FM programming with the Korg Opsix. You’ll learn what FM actually is, how operators behave as carriers and modulators, how algorithms shape the sound, and how to build your first usable FM patch from scratch. Perfect if you’re coming from subtractive synthesis and want to finally “get” FM.
⏱️ Timestamps
0:00 – Intro
0:21 – What FM synthesis actually is
0:55 – Operators vs oscillators
1:26 – Carriers and modulators explained
2:04 – Visualizing FM with the Opsix analyzer
2:44 – Frequency ratios and LFO‑like modulation
3:48 – Moving into audio‑rate modulation
4:24 – Creating harmonics and bell tones
5:01 – Understanding algorithms on the Opsix
6:14 – Choosing the right algorithm for the sound
7:46 – Building a simple 2‑operator patch
8:27 – Carrier and modulator envelopes
9:09 – Brass‑like and string‑like timbres
10:02 – Layering multiple operator pairs
11:05 – Detuning stacks for width
11:38 – Adding percussive transients
12:03 – Using Opsix effects (chorus, delay)
12:57 – Why multi‑layering works for EPs, basses, and more
13:13 – What’s coming in Part 2 (ratios, fixed frequency, EP patch)
🎯 What You’ll Learn
How FM differs from subtractive synthesis
How operators interact to create complex harmonics
Why ratios matter for tone shaping
How to pick algorithms intentionally
How to build a usable FM patch with envelopes and modulation
How layering operator pairs creates EPs, bells, brass, and basses
📢
If you’re enjoying this Opsix FM series, hit Like, subscribe, and turn on notifications so you don’t miss Part 2 — where we dive into frequency ratios, fixed frequencies, and building a classic FM electric piano.
