Mahler symphonies tier list

S: 9th, 6th
A: 8th, 5th
B: 3rd, 7th, Das Lied
(this is the masterpiece line)
C: 4th, 10th
D: 1st, 2nd

7 of the top 10 works of the 20th century, 10-11 of the top 20. Astounding!