I have been working on a randomized music patch using instrument samples played randomly with occasional key changes, and with an evolutive tempo. If I enjoy a lot the complete randomness of the sound, I want now to try to implement some rules in the chaos. Specifically I would like to track specific sequences of notes, and have a specific motif playing if that sequence happens.

In my patch each note is played by one specific sample affiliated to a number, and it is output if the number box controlled by a random object outputs this number.

Is there a way to track a specific sequence of numbers output by this number box? I would then condition a trigger if that sequence happens and the trigger would start a specific musical motif.
The number box has its value constantly changing, and I would like to have a trigger that would be banged if the number box does a sequence of like 23, then 18, then 7.

I'm new on this forum, and fairly new at Pd as well, I hope I make myself clear !

@the.sasa Like this?
iits-help.pd
iits.pd

List dripping in one form or another tends to be the solution when you have to deal with both a stream and a list, Sticking a [change] between the [t f f] and [get $1( would make this more efficient, will update it later.

Edit: Added the [change] and tweaked the get message so it will play well with older versions of pd.

this works amazingly ! I don't understand fully the processing it's doing but thank you so much, I'll dig into it and will get better acquainted to the inner functioning over time I'm sure

another question now... Once this sequence is detected, I want to play a specific tonal sequence (so in my patch it comes down to a specific series of numbers written one after the other in one specific number box).

I tried to use the trigger object, but the issue there is that trigger outputs it instantly in human-perceived time. Whereas what I need is each number being messaged into the number box following a specific bpm which I get constant triggers of from somewhere else in my patch (it also is not possible to divert from it by using a specific metro object as my bpm subpatch has a constant evolution with an LFO varying with another LFO to have a constant organic BPM change).

Basically I wonder if there is a way to use something such as a trigger object that orders the messages to send, but does it following the trigger it receives and not all of them from one trigger.

@the.sasa Have a look at [list-dripslow] from the "list-abs" library.
It will sequentially drop the numbers from a list as it is banged by your triggers.
The list-abs objects are almost all vanilla abstractions so you will learn a lot about manipulating lists.
list-dripslow.zip
David.

All works ! Thanks for the precious help. It is really nice to be able to create some fixed elements within the chaos of the random music generator. It opens a lot of musical doors !