In piano music, finger numbers written above or below the staff are suggestions given by composers for best finger action.
D Major Scale on Piano: Notes, Fingering & How To
Finger Technique WorshipFingers Gospel Centre
Piano chord fingering notation with only 1 finger number for multi-finger chord - Music: Practice & Theory Stack Exchange
Finger Technique WorshipFingers Gospel Centre
4 Ways to Read Music for the Violin - wikiHow
How to read guitar sheet music, how to read notes for guitar
Beginner Piano Music for Kids -- Printable Free Sheet Music
Learn All About the G Major Piano Scale - Hoffman Academy Blog
3 Ways to Read Chord Diagrams - wikiHow
How to Read Piano Notes & Sheet Music: 5 Easy Steps for Beginners
Chinese finger-counting system.