So I generally don't keep information like this up to date on websites, but just this once I'll put them all in one spot.
March 20, 2021 - Women of the Guitar - @ eventbrite.com
March 28, 2021 @ 19:00 - Premier of Elegy II by Eduardo Frigatti - Americas Guitar Duo in cooperation with onlinekonzerten.eu and Martin Schminke
May 8, 2021 @ 19:00 - Guitar Duo Concert @ Forum für Kunst und Architektur Essen
June 12, 2021 ?? @ 19:00 - Sofia Gubaidulina Complete Guitar Repertoire - Rü Bühne, Essen in cooperation with the GNMR
July 2021 - TICINO - Gubaidulina
August 28, 2021 - Sofia Gubaidulina Complete Guitar Repertoire
Two other dates are as of yet not strong enough to advertise... meaning that they don't exist, but are being planned with other responsible parties. Keep an eye out! Scheduling new concerts in the time of Covid is no joke.