Instructions: In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
Input: In The Oxford Companion to Music, Percy Scholes points out the similarities to an early plainsong melody, although the rhythm is very distinctly that of a galliard, and he gives examples of several such dance tunes that bear a striking resemblance to 'God Save the King / Queen'. Scholes quotes a keyboard piece by John Bull (1619) which has some similarities to the modern tune, depending on the placing of accidentals which at that time were unwritten in certain cases and left to the discretion of the player (see musica ficta). He also points to several pieces by Henry Purcell, one of which includes the opening notes of the modern tune, setting the words 'God Save the King'. Nineteenth-century scholars and commentators mention the widespread belief that an old Scots carol, 'Remember O Thou Man' was the source of the tune.
Output:
who wrote the tune for god save the queen