O Tannenbaum the faithless maiden of the folk song. This was changed to ' (green) at some point in the 20th century, after the song had come to be associated with Christmas. The tune is an old folk tune attested in the 16th century. It is also known as the tune of "" and of "". Below is the tune with the original German lyrics of the first verse: <score vorbis="1"> » </score> The tune has also been used (as a contrafactum) to carry other texts on many occasions. Some notable uses include: O Tannenbaum "" (; "O fir tree", English: "O
Samuel A. Tannenbaum also published a major series of bibliographies on significant Elizabethan and Jacobean figures that were important scholarly resources in their era. His second wife, the former Dorothy Rosenzweig (married 1942), collaborated with him on some of his later publications. As an amateur or self-taught palaeographer, Tannenbaum took positions and presented arguments on issues involving this area of Shakespeare studies, burgeoning at the time—though he often ended up on the side opposite the evolving scholarly and critical consensus. He was intensely skeptical of the view that Shakespeare contributed to the revision of the play "Sir Thomas More," and argued against the