Ok, I figured out how to record a 4 measure pattern with multiple tracks, quantize, edit and all that. I have it "linked" to a performance. As I stated before, I come from using the Mox6 and my mind is stuck there. I recorded another 4 measure pattern linked to the same performance and expected the patterns to play back to back, but they don't.

And neither would they on your MOX6. If you recorded 16 Tracks in Section A on the MOX6 then you recorded 16 Tracks in Section B, did you expect them to play back-to-back? No. Because they don’t play back to back there either.

In order for them to play back-to-back you would press the SECTION [A] button, and then in measure 4 of Section [A] you would press the Section button, and at the top of the next measure it would play Section B (or have you forgotten?)

Alternatively, you could have created a “Patten Chain“ to automate the Section changes.

In your MONTAGE, you Record your first 16 Tracks in Scene 1 and then your next in Scene 2.
When playing back select Scene [1] to hear the first 4 measures and then in measure 4 of playback press Scene [2], at the top of the next measure it changes to Scene 2. Exactly like you did in the MOX6!

Alternatively, you can create a PATTERN CHAIN to automate the section (Scene) changes.

Can I have a performance made up of 20 patterns and have those patterns play in any order I wish with different time signatures, tempos and lengths and then convert to a song?

No, but you couldn’t on the MOX6 either, there were 16 Sections [A]-[P]. Here you can construct eight Scenes 1-8 — these each can be from 1 to 256 measures in Length. And they can be accessed in real-time (same as MOX Sections). They can be “Chained” (same as MOX Sections).

Each Pattern 001 through 128 has eight Scenes (which act as musical sections).
Each Pattern can be linked to a 16 Part Performance.

I need to be able to compose entire songs using 16 tracks all on the keyboard. I don't understand what a scene is and why there are only 8 available in chain mode.

A Scene is the equivalent to the MOX Section, It has 16 Tracks, like the MOX except you can additionally store settings for the synth and its mixer within each. When you recall the Scene you can have it recall mixer settings, effect send amounts, Pan position, keyboard transmit status, Arp selection, Motion Sequence selection, Super Knob position, etc., etc., etc.

Like the Sections of the MOX-series, the Record Length determines the length of the recorded Phrase per Track, but different from the MOX, in the MONTAGE Playback Length (Scene Length) is dynamic. This means it can playback varying lengths and this is adjustable in real time — while it plays. This opens new ways to interact with your playback data.

Example: You can record (or append) a Verse and a Chorus to the same Scene... such that the first 8 measures are Verse, and the second 8 are the Chorus. On playback have it loop just the first 8 measures, the Verse, as many times as you require— then since playback Length is adjustable in real-time, lengthen it to reveal the Chorus... which starts at measure 9.

Scenes can be appended (added to the end of each other to make longer segments). And with the ability to dynamically lengthen and shorten the playback Length of Scenes you can control the playback more flexibly than previously. After the Chorus you might append a 24 or 32 measure solo section. Letting it play when you desire.

You could do a similar thing on the MOX, by setting up the Chain so that only a portion of it played back, but you had to do it with the Chain function, you couldn’t do it in real time. Now you can dynamically change the number of measures each Scene plays before it cycles back to the top.

You could record an 8 measure verse — append an 8 measure chorus to the end making a 16 measure Verse Chorus.
Then record an 8 measure chorus — append an 8 measure verse to the end making a 16 measure Chorus Verse.

Now, you have a way to extend either of them whenever you require. Scenes can each be 256 measures (just saying).

Scene 1 plays Verse then Chorus. You can easily setup Verse-Verse-Chorus by setting Loop = 8, it will continue to loop then when the Verse was in the second repeat, change the Length dynamically to 16, to reveal the Chorus.

You can have the Verse play forever with the Length set at 8 measures... and when you’re ready to move to the Chorus simply change the Length. It adds a whole new level of real time interaction. In addition to what you had in the MOX!

Sorry, I appreciate the help...I figured out how to record different scenes and convert them to a simple song. I guess my questions now are: Are 8 scenes all I have to work with to build a song? Before, I had 16 Patterns to construct my song. Then once it was converted to a Song, I could still change any measure of any track in that song. I may have different drum fills or guitar parts for every chorus. Also, on the Mox, each pattern could be a different time signature. How can I work that on the Montage? Lastly, (for now. Lol) on the Mox I was able to go to “Job” > “Create Continuous Data” and change Tempo wherever I needed or even slow it down or speed it up over several measures. Is that possible? Sorry for all the questions. I’m just trying to make sure I have what I need. I am more into to constructing a song from beginning to end and not looping through sections to jam live. Thanks!

Earlier generations had more control over sequencer note data. As of now, notes can crescendo/decrescendo over measures or velocity scale over measures or change the length of notes (legato vs. staccato = gate time) gradually over measures. That's it. There's not a job for changing the tempo. This gen doesn't have tempo as a knob and the motion control / sequence doesn't have tempo as a destination. Maybe in the context of the pattern sequencer some enhancements can be made to tempo control I've been wishing for outside of pattern sequencing.

Every pattern can have its own time signature. When you record a pattern - time signature is something you can set. Also, if you re-record the pattern, you can change the time signature (and do not necessarily need to change any notes or other data).

The Montage new features document has pages on the pattern sequencer or you can review the online guide.

Source - Online Guide: https://yamahasynth.com/synths/mastering-montage-modx-pattern-sequencer-features-in-os-v3

You can see "Time Signature" is something you can set here.

Are 8 scenes all I have to work with to build a song? Before, I had 16 Patterns to construct my song.

No, on the MOX you had 16 Sections (not Patterns, you had 64 Patterns on the MOX, you now have 128 Patterns on the MONTAGE/MODX)). And as mentioned, on the MOX the playback Length was not dynamically adjustable — meaning that once you were playing them back you could not adjust the Length dynamically. Now you can. There are 8 Scenes whose Length is real-time adjustable.

Working things like Fill-Ins will be handled differently in this arrangement of features. Instead of using a Scene just for a fill-in, it is possible to place it in the appropriate measure... Example....
Old MOX Workflow: instead of playing Section A for 7 measures and switching to Section B for a 1-measure fill-in, then back to Section A... as you’ve done in the MOX.
New MONTAGE Workflow: here you could make Scene 1 8-measures in Length with measure 8 being the fill-in. It’s more economical, and less work trying to control them during playback

You should try and forget, how you used to work, and look for new opportunities and workflows with your new synth. You now have 8 Arp Selects that can be associated with your 8 Arpeggiators. When assembling your MONTAGE Scenes recognize you can easily switch between Main groove and fill-ins while documenting your Scenes.

Then once it was converted to a Song, I could still change any measure of any track in that song. I may have different drum fills or guitar parts for every chorus. Also, on the Mox, each pattern could be a different time signature. How can I work that on the Montage?

Again, I think you mean Section when you say “Pattern“. Just like the MOX, Time Signature must be set prior to record as that determines how the Pattern counts and loops. Just like the MOX, all Scenes (Sections) share the same Tempo, Tempo Change is input to the linear Song, once converted.

Lastly, (for now. Lol) on the Mox I was able to go to “Job” > “Create Continuous Data” and change Tempo wherever I needed or even slow it down or speed it up over several measures. Is that possible?

There is no “Create Continuous Data” Job. Creating continuous data is done by applying continuous data via your real-time controllers. Continuous Controllers include 136 Assign Knobs (8 per Part plus 8 Common Assign Knobs), Quick Edit Knobs, FC, RB, AT, PB, FS etc.

Recording Tempo Change
For example, is done by overdubbing Tempo to your linear Song in real-time.
Here’s how:
On your linear (converted) Song, place the Sequencer in “RecType“ = Overdub
Move the cursor to highlight current Tempo
You can record gradual Tempo Change using the Data Dial, or you can insert an immediate change at any time using the numeric touch pad.

The Data Dial and numeric Touch pad let you reach all two hundred ninety-five whole integer tempos from 5BPM to 300BPM. Double tap the TEMPO parameter, type in your value, tap DONE on the clock pulse you wish to insert the change.

Deeper Edits can be accomplished by using your favorite DAW software, data from the MONTAGE sequencer can be moved to your computer using MONTAGE CONNECT (drag ‘n’ drop into your DAW Project).