I stumbled upon this blog post in Reddit, and I found exercise no.3 in it very useful for ear training.
I know what he means by you can just play a scale and not hear its sound, how it differentiates from other scales you can play. All those colours, and internalising them.
What do you guys think of it?
https://www.unlocktheguitar.net/blog/how-to-really-hear-the-modes
Take it or leave it, the shadow is always there.
Holding your hand.
With a glass of ice cold lemonade in the other.
Listening to reggae music.
What more do you want?
Recently I've enjoyed a masterclass by Guthrie Govan; he said that if you want to really understand the sound of a scale, you must play it in a context, that means you should play it against a chord.
For example, play the A minor scale over a C major chord, and then play it over a A minor scale. The notes involved are the same, but the feeling is different.