IRCAM (French: Ircam, Institut de recherche et coordination acoustique/musique, English: Institute for Research and Coordination in Acoustics/Music) is a French institute dedicated to the research of music and sound, especially in the fields of avant garde and electro-acoustical art music. It is situated next to, and is organisationally linked with, the Centre Pompidou in Paris. The extension of the building was designed by Renzo Piano and Richard Rogers. Much of the institute is located underground, beneath the fountain to the east of the buildings. Several concepts for electronic music and audio processing have emerged at IRCAM. John Chowning pioneered work on FM synthesis at IRCAM, and Miller Puckette originally wrote Max at IRCAM in the mid-1980s, which would become the real-time audio processing graphical programming environment Max/MSP. Max/MSP has subsequently become a widely used tool in electroacoustic music. Many of the techniques associated with spectralism, such as analyses based on fast Fourier transforms, were made practical by technological contributions at IRCAM. For instance, researchers at IRCAM have developed a special microphone capable of isolating each of the cello's four strings for separate amplification or electronic treatment. Along with tools for sound synthesis and analysis, IRCAM has played an instrumental role in developing programs for visualization of musical form with the creation of OpenMusic, a Lisp-based visual programming language. IRCAM provides classes to train composers in music technology. Composers who do not have programming experience to create the technology end of a piece for ensemble and electronics are provided with an assistant who helps them to realise technically intensive parts of the piece. The assistant will follow the conceptual advice of a composer with no technology experience to realize a computer part, or will help a composer who can program in Max/MSP to make their "patch" more efficient and elegant.