https://musescore.org/

Tutorials : https://musescore.org/hu/tutorials

Harmonica Tablature (Harp): https://musescore.org/en/project/harmonica-tablature-harp

MuseScore in Minutes: Lesson 1 – Score Setup:

Best music notation software 2020: Music writing software for quick and easy composition:

https://www.toptenreviews.com/best-music-notation-software

7 Best Music Writing Software Programs for DIY Musicians:

https://www.careersinmusic.com/best-music-writing-software/