But some of the best new metal comes from widening the rules and deepening the sound.
Neil McComick of The Daily Telegraph praised Jamie xx for "somehow widening and deepening the sound without intruding", while Puja Patel of Spin magazine credited him for "both stretching and magnifying the gritty beauty of his vocalists".
Like a parent calling the children in for dinner, orangutans have been observed cupping their hands in front of their mouths to amplify and deepen the sound of their calls, specifically a warning sound known as a kiss-squeak call.
With him on board, the trio were able to deepen their sound, and create something even more streamlined and engrossing than their previous works.
In a test, the voice mode certainly gave my speech a professional sound, deepening it and making it richer.
And the purpose of the poet's work is to inflect the silence that falls once the words have been read – the poem as tolling bell, the stillness after deepened by the sound preceding it.
Tech is no longer just a way to make noise; now it's deepening our understanding of a sound that's starting to dominate our culture.
This has never been addressed by American hawks, who always seem to be searching for new alarms to sound about new and deepening threats.
Media captionLyse Doucet: "Food has become a weapon of war" More dire warnings have been sounded on Syria's deepening humanitarian crisis.
Zhang's qualification "probably" may sound too naïve amid a deepening political and economic crisis worldwide.
