I like playing scales as well as Czerny studies. I find them soothing. You can play them while thinking about something else.
The scales on the white notes are much easier -the fingering is the same for the major and minor scales and for all the scales except for the scales on F in the right hand. For ages I played the 21 scales on the seven white notes – major, melodic minor and harmonic minor and the major and minor arpeggios – and only attempted the scales on the black notes occasionally.
I am now making a determined attack on scales starting on the black notes, where not only does the fingering vary between them but sometimes in the melodic minors the fingering is different going up from coming down. I suppose I should regard it also as a brain exercise – very important when you are 84.
I don’t play my acoustic piano before 8am or after 9.30pm – though the neighbours say they don’t hear me. The advantage or disadvantage of practising the scales on my Yamaha electronic keyboard is that it is so easy to record and playback. No chance of saying to my tutor – ‘Sorry, but I played them perfectly before you arrived!!’