Melodic techno production - few questions about melody and arrangement

[technobuka]

1) How many notes do you use to write the main / hook melody?
2) How long are your main melody sequences usually?
3) How many chords do you usually use on a whole track?
4) What is the best key/scales for club music in your opinion and are there any key/scales to avoid?
5) If I use the scale for example - D minor, can the kick be in the G (G is a note from the D minor scale)?

[Kinh]

wha-choo-wanna know dat for?

[technobuka]

I know - the questions are a bit strange, a bit obvious, but the longer I stay in the genre, the more similarities I notice, so I ask you how you think. For example, most of the arpeggios are on the 1st, 5th and 6th degrees of the scale. Most sequences are 4 bars long. On average, producers use 4 notes in their leads.

I just noticed that when I start using more than 4 notes I get over the melody stacking and everything starts to get too sweet and naive. So I think the key to creating emotional and dark melodies is for example having a fixed note limit.

[Kinh]

ya dont na na need ta know dat shit

[KnowsAudio]

hey man!
iv'e made a tutorial about it:

https://www.youtube.com/watch?v=JzW7U0xhReA

[mh4k]

Not sure you can reduce a genre down to a recipe of X notes in Y chords over Z bars.