"We went to the backstage door for a sound check, " McDaniels says.

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Others play along better: In a 2001 concert, SAP co-founder Hasso Plattner got to play guitar on a blues song during a sound check with Aerosmith frontman Steven Tyler.

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With a lot at stake, we recommend a sound credibility check.

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The compulsory phonics check assesses a child's ability to sound out or decode a series of words, some of which are made up, to test their reading skills.

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We'll check back with everyone on this in a year, sound good?

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Here's why Calexico can afford to kick back during sound check: Burns and his longtime musical partner, drummer John Convertino, have assembled a versatile crew of multi-instrumentalists and vocalists from their hometown of Tucson, as well as Madrid and Berlin.

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