Between his two best known bands, the multi-instrumentalist appeared on four of the biggest-selling albums of the period 1969-79
![Ian McDonald: King Crimson and Foreigner co-founder dies age 75](https://i.guim.co.uk/img/media/4a78b76c0449bf1127a6168a0ffe3481ff0d2e9b/0_362_4712_2829/master/4712.jpg?width=1200&height=630&quality=85&auto=format&fit=crop&overlay-align=bottom%2Cleft&overlay-width=100p&overlay-base64=L2ltZy9zdGF0aWMvb3ZlcmxheXMvdGctZGVmYXVsdC5wbmc&enable=upscale&s=b133853bea35f7b4b42dfac9b2c4291a)
Ian McDonald, a co-founder of two era-defining groups in prog band King Crimson and rock outfit Foreigner, has died age 75.
A representative said he had “passed away peacefully on 9 February in his home in
New York City, surrounded by his family”. No cause of death was disclosed.