Musicpic: the search term kwe='diagram' results in 4 hits
1.
diagram: "Trends in performance of Sibelius compositions.Eleven American symphony orchestras É subscription concerts 1900-1950"
2.
diagram: "Proportionate representation of Sibelius, American symphony orchestras 1900-1950"
3.
diagram: "Popularity pyramid.Seven American symphony orchestras.Average rank 1936-41";; hur É mycket olika tonsättare spelats procentuellt bla Sibelius
4.
diagram: "Eleven sympony orchestras of the [USA].Proportionate representation of composert in total repertoire 1875-1950" bla Sibelius