How to change octave of playback on vocal treble clef from tenor to alto/soprano?

Hi, everyone,
I received a Musescore file tonight that is a takedown of original music, written for a tenor. The playback on the vocal staff is in the tenor octave, but I need to change that playback as I want to change the key for my own use. Right now, as an example, the E in the staff on the word "you" plays back at pitch E3 but I need it to play back at E4 so that the playback is the right octave for my use. I can't seem to locate the setting to change. How do I do this? Any help is appreciated. TIA