Learning by Playing with Pianu.com
The American platform pianu.com is based out in the US and offers digital piano lesson in the browser and an extensive library of songs that you can learn. Pianu.com uses OSMD to display sheet music.
The user has several options for playing the sheet music, such as the mouse or keyboard via a virtual keyboard. However, the use of a MIDI keyboard is understandably recommended in order to be able to better transfer the skills to real instruments.
These are already available at a reasonable price, and Pianu.com even offers corresponding recommendations. Similar to popular music video games like Guitar Hero, when and which key to play is indicated by colored bars that slowly fall from top to bottom on the corresponding key of the virtual keyboard.
A beginner on the piano can make his first steps at Pianu.com in the Academy. It is specially provided to teach the theory and practice of music step by step. First, in simple exercises, playing is practiced with separate hands, and finally with both hands together.
This is followed by music notation and further theory combined with practical exercises to select music examples. The ultimate goal of Pianu.com is to explore and learn the extensive library of pop and classical music.