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This is a scene of trial run known as a “Singing train“ or “melody train“ on Keikyu Rainlway Company Type 2100, which has the devices of VVVF inverter made by SIEMENS CORPORATION , Germany. The Keikyu has started an updating constructions from these German devices to domestic ones from 2008. And finally, one of this series, 2133-2140, has been replaced to Not- “Singing train“ on . This video was recorded in 02 by 8-mm video camera. This test has been carried out prior to commercial operations. And have a precious opportunity of hearing some unique and beautiful melody or sounds. The recoding place is the stations between Keikyu Kurihama and YRP Nobi on its Railway,Kurihama Line, in Yokosuka City. Because this place has a steep slope of 30/1000, 30‰. they have attmpted some test of 'electrical overload'. Then we were able to hear something unusual as we can hear that in normal operatins or any other movies recorded in usual. Unfortunately, as the track located nearby the heavy trafic road an
