I noticed Boss101 made a thread regarding how to know what key your working in and how to know what keys go together, and it made me think about the first time I was diving into production. I had never learnt music theory and really had NO CLUE what the keys were and how to figure out which keys work together or even what a chord was. My tracks were sounding rubbish because I was just guessing. But I was given a good piece of advice which changed everything about how I work and made it seem so easy and definitely helped me getting started. This does not even really touch into the depths of music theory at all, but it is so necessary for anyone that was in a similar position to me and didn't even know where start in terms of music theory or just making a basic song that sounds in key. To keep it REALLY simple for you and to just make basic tracks with either Minor or Major chords, follow this basic algorithm and it all makes sense. Forgive the lack of proper terminology, its just easier to explain/understand haha. This formula includes both black and white keys. A semi-tone relates to a key on the keyboard. To play a minor chord (sad) with 3 keys: ROOT NOTE > skip 2 semi-tones (keys) > key > skip 3 semi-tones (keys) > key To play a major chord (happy) with 3 keys: ROOT NOTE > skip 3 semi-tones (keys) > key > skip 2 semi-tones (keys) > key So you are just changing the middle key to get either a minor or major chord. Just remember, skip 2 then 3 keys for a minor, and skip 3 then 2 for a major. Examples (works for any key) D Minor - Start with D, skip TWO keys, you get F, skip THREE keys and you get A. Hold them together and you have a D minor chord. D Major - Start with D, skip THREE keys, get to F#, skip TWO keys and your at A again. A Minor - Start with A, skip TWO, hit C, skip THREE, and you get E. A Major - Start with A, skip THREE, hit C#, skip TWO, and your at E again. G# Minor - Start with G#, skip TWO, hit B, skip THREE, hit D# G# Major - Start with G#, skip THREE, hit C, skip TWO, hit D# again. Simple hey! I understand to some people this is equivalent to me writing a post on how to breathe but hopefully this is helpful to those who were like me and didn't even know where to begin, as there is way too much info out there assuming people know the basics. If i've made any mistakes let me know. And if anyone wants to add to this, go for it! Cheers! UPDATED: I just found this video, watch it to see what I mean in practice.