 The Esquisses of 1861 are a set of highly varied miniatures , ranging from the tiny 18 @-@ bar no . 4 , Les <unk> ( The Bells ) , to the strident tone clusters of no . 45 , Les <unk> ( The <unk> ) , and closing with a further evocation of church bells in no . 49 , <unk> <unk> ( <unk> God ) . They were preceded in publication by Alkan 's deceptively titled Sonatine , Op. 61 , in ' classical ' format , but a work of " ruthless economy [ which ] although it plays for less than twenty minutes ... is in every way a major work . " 
