1592954214000 1312632483000 term-94556 1616540975530 1312632594000 1616290200174 adlib fitz-online adlib-term-94556 0900dd78-04d8-3577-946b-001a8fa4f6c3 2 1 scope note Upright grand pianos in the form of a truncated pyramid, developed in the 18th century and remaining popular until the early 19th. MARCUS reference term-94552 adlib-term-94552 11d88ab1-6265-381c-815f-6ac8fa363475 pyramid piano V.TT.AFU.ALO.BOK.BIQ.ARI.BCW.ARI.AXC 1 code V.TT.AFU.ALO.BOK.BIQ.ARI.BCW.ARI.AXC 1 pyramid pianos reference term-94555 adlib-term-94555 916128bf-ed83-3468-b836-654b951a6be9 upright grand pianos pyramid pianos term