He started the study of TMI, or transmarginal (*) inhibition, an organism's response to overwhelming stimuli, such as stress or pain, relating shutdown points to temperament.
Though not a composer, this man used whistles, metronomes, and tuning forks in his work. He won a Nobel prize in Medicine in 1904 for researching the digestive system, from which his most famous work stemmed. The term which he is most famous for introducing was actually a result of a mistranslation into English, which caught on when John B. Watson used it. He started the study of TMI, or transmarginal (*) inhibition, an organism's response to overwhelming stimuli, such as stress or pain, relating shutdown points to temperament. In his most famous experiment, he paired a CS with a US, ringing a bell whenever meat powder was present. FTP, name this psychologist known for conditioning dogs to salivate. 
Though not a composer, this man used whistles, metronomes, and tuning forks in his work.
Ivan Petrovitch {Pavlov}