Music Theory - Chords, Intervals

Hi there, I’ve got a few questions about chords and particularly intervals. br
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My main understanding of minor/major keys, chords scales comes from watching the music theory videos, but I’m still not totally clear on intervals and specifically when you create a chord within a synth patch by setting the oscillators to play different notes. br
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  • If I create a preset in a synth and I choose to pitch one of the oscillators up by a certain number of semitones, I understand that I’ll be creating a chord, so that when one key on my midi keyboard is pressed, the oscillators are playing a chord. So my question is – do I therefore have to be careful which notes I play I on my keyboard to keep everything in the correct key of the rest of the track? Or to ask the question another way. Say I choose to write a song in C-Major, and then I set up a synth patch with one oscillator playing the root note and one oscillator playing 5 semitones up. I go to my keyboard and tap away on the c-major keys C-D-E-F-G-A-B-C, will everything I play be in the key of C Major, or is there a risk that one of the keys I press will produce some chord that’s not in the C-Major scale? br
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  • Basically I love the chord stabs presets that come with ANA, but I’m a bit nervous to use them because I don’t know what key the chords are set up in, and I don’t know whether I can just hit any key and it would be correct or not.br
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  • Also - if you set up a synth patch with the oscillators playing a chord, aren’t you limiting yourself on your song because you’re setting up a chord with a fixed interval. Would you not want the flexibility of being able to change the interval in the chord? Therefore wouldn’t it be better to have all oscillators playing the root note, and then just programme chords into the piano roll, you could then change the interval width.br
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    Sorry if these are basic queries, and I hope I’ve explained myself correctly. Any feedback is appreciated!br

Yeah using stab chords can break the scale BUT that is sometimes the fun bit.br
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There have been tons of great tracks that have used chord stabs in interesting ways.br
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As always if it sounds cool its right.

Ok thanks for the reply!