Musical instruments are central components of both the tangible and intangible heritage. However, discourse about music as intangible cultural heritage frequently overlooks the importance of instruments in conserving traditions inherited from the past and making live performance possible in the present, while curating instruments as tangible heritage often neglects their function for making music. This article explores two interrelated research questions about musical instruments as heritage. First, should instrument-crafting skills inherited from the past be sustained today, and, where industrial or mechanized manufacturing processes and the development of instruments is encouraged, what are the implications for sustaining music traditions? Second, given that instruments as crafted objects deteriorate over time, should instruments inherited from the past be displayed as objects, be restored to playing condition, or be updated and developed for contemporary use? To explore these questions, I take three case studies that juxtapose musical instruments from opposite sides of the world and from societies with very different philosophical and ideological approaches. The three case studies are Britain’s piano heritage, traditional Korean instruments (kugakki) in the Republic of Korea/South Korea, and “national” instruments (minjok akki) in the Democratic People’s Republic of Korea/North Korea. Based on fieldwork, ethnography, and collecting and curating work, my choice of case studies allows me to look at both the country I call home (Britain) and the region where I have researched matters musical for 40 years (the Korean peninsula). But the case studies also demonstrate that there is no single answer to questions about the role of musical instruments when (and if) instruments are recognized as both tangible and intangible heritage.