Tulsa Opera has announced its online slate for the week of May 25, 2020. Soprano Keely Futterer will perform Richard Strauss’ “Zueignung” on Monday, May 25, 2020 at 2 p.m. CT. She will perform alongside Lyndon Meyer. Futterer is a Tulsa Opera Filstrup Resident Artist. Then on Wednesday, May 27, tenor Humberto Borboa will perform Dvorak’s “Als die alte Mutter {…}