What if the band you are working with know absolutely nothing about musical theory or chord composition?
As the engineer do you sometimes need reminding which notes belong to a certain musical scale? Maybe you just want to prove to a certain smug musician that they are not the only one who knows the composition of a "A# minor major 7th add 13" chord...
Choose a root note, then a chord type or scale, and the notes that belong to the selected item will be represented on the keyboard below in a clean and clear manner.
The chord compositions are shown in a way that allows them to be easily read and understood. As a result the voicing of some chords will not be the most logical or pleasant sounding.