Woodwind Ensemble,Woodwind Quartet Bassoon,Clarinet,Flute,Oboe - Level 2 - Digital Download SKU: A0.839014 By Coldplay. By Chris Martin, Christopher Anthony Martin, Guy Berryman, Jon Buckland, Jonathan Buckland, Will Champion, and William Champion. Arranged by Kenneth Martin. Rock. 16 pages. Martin Music Editions #5209235. Published by Martin Music Editions (A0.839014). ÈKÓ (EKO) by Coldpay for String Quartet from EVERYDAY LIFESongwriters: Christopher Anthony John Martin / Guy Rupert Berryman / Jonathan Mark Buckland / William Champion