Possible Clues:

• Fast? Old and slow
• Tempo of Chopin's "Marche funèbre"
• Tempo of Chopin's 'Marche funèbre'
• One of many popes digesting Holy Writ slowly
• Musical term meaning “slowly”
• Article removed from shed very slowly
• Shed sheds mantle of autumn, slowly
• Slowly (in music)
• Instruction in a book of Liszt's
• Slowly, in a sonata