"Music literally would not be what it is today without Mr. Kakehashi", said Steven Fisher, now at Yamaha and a former employee at Roland, who worked with Kakehashi on electronic percussion and drum products.
He built Roland, which he founded in 1972, into a company that makes hundreds of widely used instruments and audio devices and led it as chief executive before founding a new audio and video electronics company, ATV Corp, in 2013.
Ikutaro Kakehashi was born on February 7, 1930.
2 further arrests in London terror attack
Islamic State claimed responsibility in a statement issued by its Amaq news agency, but did not name Masood and gave no details. Deputy Assistant Commissioner Neil Basu said there was no intelligence to suggest further attacks were planned.
Kakehashi's drum machines and synthesisers inspired the evolution of genres from krautrock to hip-hop, house and techno and scores more between.
"Ikutaro Kakehashi, founder of Roland, father of the TR-909, TR-808, Godfather of MIDI, and someone who I have collaborated with for 38 years, and also considered him as my 2nd father, passed away at the age of 87", wrote Snyder. Despite barriers to formal education, he pursued an engineering career that included watch and radio fix before he started developing amplifiers and electric organs in the 1950s. Among his accomplishments are the Ace Tone and Roland drum machines, and also the MIDI standard. In 2013, he and Sequential Circuits founder Dave Smith received a technical Grammy for their work on MIDI (Musical Instrument Digital Interface) technology. In more recent times, Rapper Kanye West's 2008 album 808s & Heartbreak showcases the machine throughout. A 2015 promotional video describes how surprised Kakehashi and his co-creators were when the machine, originally meant to fill in for backing musicians, took center stage in entirely new genres.
Among the fans of Kakehashi's creations was the Japanese electronic music band Yellow Magic Orchestra, which counts Academy Award-winning Ryuichi Sakamoto as one of its members.