Medeli SP 201 temperation change question: just minor/major?
please give me some advice or point me to the resources.
I've got an electronic piano Medeli SP-201. in the manual it says that you can change temperation. you can make it equal temperament, or "just major" or "just minor"
first question: all other setup buttons make noise when they change something and stop making noise when you've reached the highest/lowest level possible. for exampls, touch response has 5 levels and if you press the setup key for the 6th time it will make no sound. temperance keys make sound even if you press them 10/20 times!! do they keep changing something??
the second question: what exactly does it mean - "just major" and "just minor" and which major/minor key do they have in mind? I hear the difference when I play scales, and especially when I play some intervals - b6 and m6 sound especially dissonant but I can't figure out how to use those settings?
(the keyboard is GREAT and super and I recomnmend it wholeheartedly, it's budget-friendly and with full-weighted keys, and it is close to the feeling of some grand pianos and also has tons of beautiful settings for the sound)