Watch mechanical fingers, touching strings with very tips. Your fingers should touch piano keys the same way.
Piano tuner in Colorado Springs: Dave Huggins
719-460-1361
PianoTuningsByDave.com
Blank sheet music (free) http://www.blanksheetmusic.net
Voice teacher In Colorado Springs: Carrie Hargraves:
http://www.coloradospringsvoiceteacher.com
How playing an instrument benefits your brain
Musician's Brain
The 7 deadly performance sins
Free Metronome Online: http://www.metronomeonline.com/
Music trainer programs online:
http://classic.musictheory.net/82 or
http://classic.musictheory.net/80
http://trainer.thetamusic.com/
The article about piano posture: https://www.wristband.com/content/piano-wrist-arm-positioning-playing
Jazz and the Circle of 5ths: JAZZ and the CIRCLE of FIFTHS