Ear training fundamentals

Thanks so much for this Ear training information and practice opportunity. This is great stuff! Id like to suggest a free ear training app that Ive been using for the times when I can’t get to an instrument (I used to work an on-call job where I was away from home a lot with a lot of downtime but no guitar handy) The app is called ‘Functional ear trainer’ It is totally free without ads or any other bunch of crap and I’m not suggesting it because because I have any sort of affiliation or anything like that. Only suggesting it because it has helped me with the opportunity to get my mind on my musical training when I otherwise would just be wasting time messing around with my phone:)