Piano solo created from a copyrite choral arrangement
I have received free samples of choral music (SATB) from a publisher when I was a church pianist in a small community in the US. A few of these were musically very good and I modified them to create piano solos. They have been for my personal enjoyment but I wanted to ask you if they could be uploaded to Musescore without infringing on the copyrite? Musescore is perfect for the task of printing a readable piano score.
I would appreciate your comments.