Assess the level of the emotion sadness in the tweet provided. Use the following categories: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.
Tweet: Historically Japanese have always been into #jazz and #blues. The 70s dark age of jazz big names like C.C. &amp; M.D. were surviving on Tokyo.
0: no sadness can be inferred