These inputs are complex LFO and a RIT_M so have varying transpose / scale combinations. The fade and FX at the end are post recording.

In the percussion TRAX 2, a rhythm was pulled from song 61 and NoteFX added to all drums (snares mostly) in lane 2 to chop by 2, with -1 curvature. Fine tune+43 so only probability notes (40%) played higher. This adds a lot of variation to the drums.

The chord TRAX is getting Arpeggiated by ORD:ARPEG to a VCO. This Arp has masks so only bursts a few notes and is upward, but Arp Latching is on. The reason it doesn't loop is because TRAX is sending a quiet single note after the chord which resets the latch. (Not at end though!)

TRAX Transpose Patch
Heres a simple Song with only 1 block per 4 TRAX that uses a simple transpose patch from Row 4 CV to demonstrate accumulative key changes.
Get it: DEMO14 SYX
TRAX 1: Chan 1 changing between 3 instruments: Saw Lead, Vibes, Musicbox. Also driving 2 VCO's with MIDI out source on row 1 & 2
TRAX 2: Chan 2 GM Fiddle and Korg synth, plus a VCO on row 3 to play the slower melody.
TRAX 3: No MIDI out (LINK on Chan 1) driving CV on Row 4 which is patched back to CC5 (input) jack.
TRAX 4: Drums with some NoteFX / Skips etc
CC5 is configured as Learn input to control Transpose. TRAX 3 is 4 notes slowly stepping to transpose with delays of 22 so the transposes happen before a bar change, otherwise the first note wouldn't be transposed yet! This could be resolved by putting the Transposer TRAX as TRAX 1 probably.

The interesting thing with this is once the transpose has changed, the next TRAX 3 note will also be transposed, so the notes are somewhat balanced to go into the minus territory countering the gains plus side. Because all of TRAX 3's "transpose notes" have a NoteFX skip note randomization, it never plays the same progression. Each note exponentially changes the possibilities, but are at set intervals from the last.
To control any runaway, Song Loop#1 has a PLFX on the first 96 bars, so totaling 192 bars before looping, that will reset the transpose to 0. This takes about 5 minutes

There are some other tweaks, like note ducking on TRAX 2 which changes the way the beginning sounds occasionally. The brass sounding VCOs on chan 1 randomly include a decent jab or short embellishment with short echo and randomization of the microarp (noteFX3) if the instrument is Saw Lead with the VCO's.
 

The Sequarallel is feeding a vintage box; the Yamaha MU-128, along with a Korg microKorg on Channel 5. The VCO's are all our SDS_VCO's with no post FX. ..The sysEx is here

The sample to the right is the result of some tweaking each loop with songFX, too many mods to list here. The string-like synth's cut filter is set by one of Sequar's envelopes triggered by the notes ...as doing this in the original ruins the bandwidth for slow (1/8) quantization trying to spit out 200 CC changes all at once!

This is held by a conditional until SongLoop 6 and SongLoop 1 has a PLFX that arms it as well. It's a way to add to a pre-recorded song and have it play at a particular point in the song. It could also time-out in bars count but that took math so chose the easy route instead! That's what's so great about the Sequarallel!

This is one of my favorite things to do with the Sequarallel, just loops and build on to it.
Then, at some point, expand the loops into a song in the Layer Step Sequencer Editor.

From the time I started to the time I recorded this was about 5 minutes! I began playing around with the Limit & Mirror Modifiers in the Layer Quick-box, which is the bulk of this sample
...then some SongFX swing changes

The VCO's can be heard running ORD:ARPEG modes and one of those is sending notes back to the MIDI synth as well. This way a fairly simple little keying on the piano turns into a much denser passage!

I have noticed it can be interesting when CV Mode Order Arpeg is active. The Arp continually changes around but keeps going in it's rhythm!

The sysEx is Demo 15 if you want to play around with it!

It was all quite easy and fluid. I tend to leave quantization off on the Arp's when feeding Sequarallel sequences in. Quantized sequences like the TRAX tracker may miss the quantization point and lag by whatever the Arp clock is set to. This could also be desired though!

Afterwards I Mirrored the new Layer track at 39 to produce some inverted drum patterns, then quantized to 1/16th's to keep it tight. The double-time kicks are an inverted hat I believe :)

So much for me I had to snatch some lyrics out of mid-air and 1-off this thing into Reaper!

OK I'll admit I played 5 or 6 notes and bent some stuff into a Layer, but this demonstrates how easy it is to come up with something useful without the complexity (or forethought)

Shoving this much MIDI down the line is fairly dense, but the Sequarallel will manage the update rates of anything it can control, based on how much is already happening. This is pretty seamless for most CC/PW/Mod apps.