Keith McIvor, a Scottish DJ who performed as part of the duo Optimo, has died at the age of 57.

The esteemed musician, known as JD Twitch, was previously diagnosed with an untreatable brain tumour, which he made public in July.

He died ‘peacefully’ at 2:06pm Friday at the Prince and Princess of Wales Hospice in Glasgow, as confirmed by his fellow DJ Jonnie Wilkes, who is known as JG Wilkes.

Wilkes said in a statement that he was sharing the news with ‘immense sadness’.

‘In a 28-year partnership, he changed my life immeasurably, and together we took our work in directions and to places few people are lucky enough to explore,’ Wilkes continued.

‘I am forever grateful for everything he bestowed on me, both as a partner in music and as a friend.

‘He was formidable. His belief in people a

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