E commands, fade things in and out.

A bit of music theory wouldn't go amiss (don't bother buying a book just look up the relations between notes in a scale to each other), but really the only way to really understand it is practice.

also i like add9, sus2 & M7 chords in softer tracks cause i'm a little bit generic

but they're nice chords!

also m6 & m7 and iv chords at the end of sections in lieu of IV. i could go oooooon

notes which slide in instead of starting at full volume

Arps with nice long envelopes.

Listen to some ambient music.

Listen to soft melodic music! That being said, a simple sine wave and some reverb can go a long way.

a bit of delay + reverb is always nice (not too much though).

two or more squarewaves in unison with a touch of detuning are a nice, soft sound as well. you'll need a knack for channel juggling or maaaaaybe another gameboy for that.

dunno what else to say other than sound-design stuff - the writing aspect depends on so many things and is totally up to you in the end!

Just slow down with the fcking Tempo!
But yeah, i guess that's the key. Use dreamy bleep & bloop sounds and make it flow.
Even if it sucks, i kinda did this ones. Sweet Dreams and so.

Do you have an example of the sound your aiming for?

Hey everyone I was wondering if you had any tips on how o make melodic songs to chill out too? Also if you know of any of these types of songs I would really like to know