Session 7

Session 07: Flex & Static Machines Deep Dive

25 min|intermediate|patch

Session 07: Flex & Static Machines Deep Dive

Objective: Compare Flex and Static machines side by side. Load the same sample as both, hear the difference, and build a pattern that uses each for what it does best — Static for a long backing track, Flex for fast-swapping drums.

If you only have 5 minutes

Set Track 1 = Flex (drum hit), Track 2 = Static (long pad or drone). Trigger both. Notice the Flex hit is instant; the Static fills the space with a longer sound. That's the whole distinction.

Warm-Up (2 min)

From Session 06, you have a sliced drum loop on Flex. Press [PLAY] and listen — Flex's instant slot swaps make slicing possible. Press [STOP]. The point of this session: what Flex can't do well, Static can.

Setup

Start from the LAB project. You'll need:

  • One short sample (drum loop or hit) loaded in a Flex slot
  • One long sample (30 seconds to 2 minutes) — a backing track, ambient drone, vocal stem, or extended pad. If you don't have one, find any long .wav file in your Audio Pool

Exercises

Exercise 1: Same Sample, Both Machine Types (5 min)

The clearest way to feel the difference: load identical audio as both Flex and Static.

  1. Pick a medium-length sample — try a 4-bar drum break (~8 seconds)
  2. Set Track 1 to Flex, load the sample (you should already have one in your slot list — pick that)
  3. Set Track 2 to Static: press [TRACK 2], [FUNC] + [SRC], MACH = STATIC. Press [NO]
  4. In SLOT, press [YES] to open Quick Assign — browse to the same .wav file. Press [YES] to load (it adds to the Static slot list)
  5. Place a single trig on [TRIG 1] for both tracks. Press [PLAY]
  6. Listen. With a short sample, the difference is subtle: Flex preloads to RAM (instant); Static streams from CF (tiny load delay on first trigger, then cached)
DATA ENTRYTRACK PARAMSVOLUMEHP VOLLEVELOCTATRACKPTN A01 PART 1BPM 120.0Octatrack MKIIABCDEFPLAYSTOPRECTEMPOFUNCPROJPARTAEDMIXARRMIDISRCAMPLFOFX1FX2SCENE ASCENE BCROSSFADERREC1REC2REC3PTNBANKPAGEUPDOWNLEFTRIGHTYESNOT1T2T3T4T5T6T7T8CUETRIG 1TRIG 2TRIG 3TRIG 4TRIG 5TRIG 6TRIG 7TRIG 8TRIG 9TRIG 10TRIG 11TRIG 12TRIG 13TRIG 14TRIG 15TRIG 16

Exercise 2: Sample Swap Speed Test (5 min)

This is where Flex shines. Stress-test both with rapid slot changes.

  1. On Track 1 (Flex), place 8 trigs at every other step: [1, 3, 5, 7, 9, 11, 13, 15]
  2. Press [PLAY]. Now turn Data Entry knob A (START / SLOT) rapidly — sample changes between each trigger. Smooth, no glitches
  3. Stop. On Track 2 (Static), place 8 trigs the same way. Press [PLAY]
  4. Turn knob A — slower, less responsive. With long samples especially, you may hear the load
  5. Verdict: Flex is for high-frequency slot variation (per-step sample locks, slicing). Static fights you when you try this

Exercise 3: Static Excels at Long Material (6 min)

Flex caps at 80 MB total RAM. A 5-minute stereo loop at 44.1 kHz is ~50 MB — eats most of your Flex budget. Static streams it for free.

  1. Set Track 3 to Static. Load your long sample (30 sec to 2 min)
  2. Place a single [TRIG 1] trigger
  3. Press [PLAY] — the long sample plays from beginning to end
  4. While it plays, you have Tracks 1, 2, 4-8 free for drums, layers, etc. Static handed you a full backing track for ~zero RAM cost
  5. Trick: open AED on the Static slot and set LOOP = ON, with LOOP START at 0 and TRIM END at the natural loop point. Now the long sample loops continuously — perfect for ambient backing
  6. Trick 2: place multiple trigs at different steps but use SLICE on the Static (yes, Static can slice too) to jump to different sections of the long sample as it plays

Exercise 4: Build a Pattern Using Both (5 min)

Putting it together — a typical OT setup.

  1. Track 1 (Flex) — kick. Trigs on 1, 5, 9, 13. p-lock-friendly
  2. Track 2 (Flex) — snare. Trigs on 5, 13
  3. Track 3 (Flex) — hat. Trigs on 3, 7, 11, 15
  4. Track 4 (Static) — long ambient pad / drone. Single trig on 1, looping
  5. Track 5 (Flex) — bass one-shot. Trigs on 1, 7, 9, 13 with p-locked pitch (Module 5 preview)
  6. Press [PLAY]. Move the crossfader to feel space (we'll design scenes later)
  7. Track allocation principle: Flex for anything you'll p-lock heavily. Static for anything long and stable

Exercise 5: When to Reach for Each (2 min)

Mental model:

If the sample is...Use...Why
Drum hit, 100 msFlexRAM-instant, p-lock-friendly
Drum loop, 1-4 barsFlexSlice + sample-lock workflow
Synth one-shotFlexPitch-lock per step
Vocal phrase, 4 barsEitherFlex if you'll mangle, Static if you'll let it play
Backing track, 30+ secondsStaticSaves Flex RAM for percussive work
Ambient drone, 1+ minutesStaticSame as above, plus loop in AED
Field recording, 30 secondsStaticStream from card, mangle with effects

Exploration (if time allows)

  • Set Track 4 to Static, load a vocal stem, trigger once at step 1, and use [FX1] Echo Freeze Delay to dub it out — the Static + delay combo is a signature OT sound
  • Stress-test Flex RAM: try loading a 2-minute stereo sample as Flex. The OT will refuse or warn. That's the 80 MB limit announcing itself
  • Use [FUNC] + [BANK] (AED) on a Static slot to verify that all the editing operations from Session 05 work the same — they do

Output Checklist

  • I loaded the same sample as both Flex and Static and heard the difference
  • I tested rapid slot changes on Flex (smooth) vs. Static (less so)
  • I loaded a long sample as Static and let it play as a backing track
  • I built a pattern using Flex on tracks 1-3, 5 and Static on track 4
  • I can articulate the use case for each machine type

Key Takeaways

  • Flex = RAM-loaded, instant slot swaps, p-lock friendly. Use for drums, slices, anything you'll mangle
  • Static = streamed from CF, longer samples, lower RAM cost. Use for backing tracks, drones, vocal stems
  • A typical OT project uses 6 Flex + 2 Static or 7 Flex + 1 Static — flex-heavy because most musical work involves p-locking
  • The 80 MB Flex RAM cap is real — Static is your escape hatch for long material

Next Session Preview

Next: Thru and Neighbor machines. We've been playing samples; now we route external audio through the OT for real-time effects processing. Connect a synth to Input A/B, set Track 1 to Thru, and the OT becomes an effects unit.