String Quartet Cello,String Quartet,Viola,Violin - Level 4 - Digital Download SKU: A0.1486181 By Maroon5. By Adam Levine and Jesse Carmichael. Arranged by btovarreglos. Pop,Rock. 20 pages. Btovarreglos #1063238. Published by btovarreglos (A0.1486181). An arrangement of Maroon 5's This Love in its original key for string quartet: 2 violins, 1 viola, 1 cello.