Ruffling feathers by Michaël Levinas is a piece for Flute in which the player reproduces the sound of ruffling feathers. With no degree of difficulty given, the player still requires the mastery of some techniques learnt in the intermediate level and above. Quite challenging, it differentiates itself from classical pieces due to the presence of many effects: trills, glissandos, fast rhythms, sound of the tongue. A guide of all the effects present in this piece appears at the end of the book. Michaël Levinas (born in 1949) was the student of the Olivier Messiaen.