Violins, deductive reasoning, cigar ash, chemistry and Mrs Hudson's cold meat suppers.
People with curious problems.
Felix Mendelssohn, Whilhelmina Norman-Neruda, Chopin, Richard Wagner, Jacques Offenbach, Niccolo Paganini"All the afternoon he sat in the stalls wrapped in the most perfect happiness, gently waving his long, thin fingers in time to the music, while his gently smiling face and languid, dreamy eyes were as unlike those of Holmes, the sleuth-hound Holmes, the relentless, keen-witted, ready-handed criminal agent as it was possible to conceive." (The Red Headed League, Sir Arthur Conan-Doyle)