Scale Changer Harmonium
Contact us on WhatsApp for Instant Replies to your queries
Scale change harmoniums allow you to slide the keyboard up to four half steps left or right. For example if you are used to playing in B flat, and the song is in C, you just need to shift the keyboard up two half steps. If you can play in different keys, or if you always play in the same key, this is not a feature you may need.