Longest sustained note on a wind or brass instrument

According to Official Guinness Records,

The longest sustained note on a wind or brass instrument is 1 min 13.38 sec on a clarinet by Philip Palmer (UK) at Coppice Performing Arts School, Wolverhampton, UK, on 27 November 2006.
His first attempt was measured at 1.16 but there was a blip in volume around the minute mark, so his second attempt was decreed the successful one.

For a complete list of 2006 records, please visit 2006 Guinness Records in United Kingdom.

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