This episode is recorded in English. How is the sound of an organ born? The question sounds simple — until you see that every single pipe is listened to, cut and adjusted by hand, and that the soul of the instrument appears exactly in that process. Our guest in this episode is Rolf Peitrusky, organ builder and voicer with 25 years of experience at Alexander Schuke Orgelbau. Together we take an organ pipe apart, watch how the sound changes with the smallest shift in airflow, and talk about why no precise measurement can replace the human ear. We cover the history of the organ, workshop traditions that go back 500 years, the secret tin-and-lead alloy whose loss damaged organs built in the 20th century, and what it takes to become an organ builder. Host: Prof. Juansher Jejelava (Juka) Guest: Rolf Peitrusky — organ builder and voicer ### ეს ეპიზოდი არ შეიქმნებოდა რომ არა ჩვენი მხარდამჭერები: პროფ. ანდრია როგავა, გიორგი მეზვრიშვილი, თამარ მეზვრიშვილი, დავით ჩიღვინაძე Pateron მხარდამჭერები: ანდრო ატოევი, სოფო გურაბანიძე, გიორგი ჯიბლაძე, ირაკლი ომაძე, იკა ჯავახიშვილი, გურამ ქველაძე, ცოტნე პეტრიაშვილი, ნოდარ კაჭკაჭიშვილი, თორნიკე ჯანაშვილი, გიორგი წყაროველი, თათია ხორნაული HardCore მხარდამჭრი: მათე სულხანიშვილი; ბიჭიკო ჭელიძე პოდკასტის მუდმივი მხარდამჭრი: ნინო ჯეჯელავა ### პროექტის მხარდაჭერა შეგიძლიათ, To support project use one or all of the following options: BasisBank: GE24BS0000000025545942 TBC: GE64TB7346445061600003 Bank of Georgia: GE93BG0000000161624319 გახდით ჩვენი პატრონი - პატრეონზე: https://www.patreon.com/ScienceForEveryone გამოგვიგზავნეთ თქვენი მადლობა PayPal-ით jukarnarius@yahoo.com ### We believe we are all part of an infinite universe, and we want our listeners and viewers to feel the same. We look at the world through a scientific lens, and we want to share our thoughts, our excitement and our wonder at what is happening around us. Visions of the future in science fiction, scientific news from around the world, the conquest of space or the splitting of particles — all of it brings us closer to an answer to the central question: "What place does humanity hold in an infinite and eternal universe?" The channel is made above all for people who are curious about these questions. ### EPISODE CHAPTERS ### 00:00:00 Teaser and introducing the guest 00:01:10 From piano to organ building: Rolf's path and the Schuke company 00:02:40 What is an organ: stops, registers and a short history 00:04:15 Which organ suits which room: church, concert hall, acoustics 00:06:45 What is intonating: a pipe in the hand 00:08:40 Inside the pipe: air, the languid and the attack of the tone 00:12:00 The soul of the instrument, and a company working since 1894 00:14:40 The key action live: abstracts and couplers 00:18:00 500-year-old technology: wood, leather and bone glue 00:20:30 Where to hear a Schuke organ, and how an organ is maintained 00:25:45 Cleaning, renovation, and whether a finished organ can be changed 00:28:50 How someone becomes an organ builder 00:31:45 A tour of the stops, and the secret of the pipe metal 00:36:45 Three weeks in the workshop: 56 keys and German work ethic 00:43:30 Live demonstration: the stops, the pedal and the full organ 00:52:00 Closing thoughts and farewell Previous episodes: 99. The Weapon of the Future (Through the Eyes of Particle Physicists) 100. Anniversary Episode - Why We Make This Podcast Listen to Science For Everyone on SoundCloud: https://soundcloud.com/science_for_everyone Watch Science For Everyone on YouTube: https://www.youtube.com/channel/UCx_jQeVsEwNw_BuVy-nCbiw Read Science For Everyone on our blog: http://georgianscience.blogspot.com/
