Corona Etude is a hopeful piece written during coronavirus lockdown. It uses rapid 2, 3 and 4-string crossings to create the sensation of multiple voices. The use of many open strings helps to create a full sound while being relatively easy to play. After players familiarize themselves with the notated version, they are encouraged to create their own realization using the sketch on the front cover. It has a folk-like feeling, while using a standard classical technique. It could be way to introduce students to the string crossings in solo Bach sonatas and partitas, and other standard literature. .