"No"@en . . . . . . . "Pitch bend wheel"@en . . "4728"^^ . "MIDI In, out, thru"@en . "DS-250"@en . "57076241"^^ . . . "Sine"@en . "979915045"^^ . . . "8"^^ . "1985"^^ . . . "61"^^ . "4"^^ . "The DS-250 was an electronic keyboard manufactured in 1985 by Seiko and was considered a commercial failure. It was capable of generating both digital and additive sounds. It is expandable with two expander units DS-310 and DS-320."@en . . "Seiko DS-250"@en . . . "The DS-250 was an electronic keyboard manufactured in 1985 by Seiko and was considered a commercial failure. It was capable of generating both digital and additive sounds. It is expandable with two expander units DS-310 and DS-320."@en . . . "1"^^ . . . . "Chorus"@en . "1"^^ . .