The materials use a standard format and have been modularized for easy "mixing and matching".

UNESCO: Communication and Information

In this digital world, where mixing cultures could be as easy as pressing a few buttons, it still takes good old-fashioned vision to imagine a sound that reflects an honest expression of what it's like to be from two great histories.

NPR: The Music Of Africa, By Way Of Latin America

This makes the mixing services an extremely obvious and potentially easy target for law enforcement.

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But mixing finances and friendships have never been easy.

BBC: Crowdfunding etiquette: How to give wisely

Mixing for-profit and not-for-profit cultures is never easy, of course, and the partnerships are sometimes tricky to manage.

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