Keywords: Chopin - op. 28, no. 21, mm.1-4.png en Chromatic nonharmonic tones in red in Frédéric Chopin's Op 28 no 21 mm 1 “4 1839 own Frédéric Chopin<br>Image created by Hyacinth talk 05 07 15 October 2010 using Sibelius 5 File Chopin_-_op _28 _no _21 _mm 1-4 mid Image Hyacinth en relicense Music PD-old-100-1923 Original upload log en wikipedia FtCG page en wikipedia Chopin_-_op _28 _no _21 _mm 1-4 png wikitable Date/Time Dimensions User Comment - 2010-10-15 11 07 1 000 × 231 28 199 bytes Hyacinth w en <nowiki> Created by Hyacinth talk using Sibelius 5 See File Chopin_-_op _28 _no _21 _mm 1-4 mid GFDL-self relicense Music images </nowiki> Sheet music of Frédéric Chopin Nonchord tones |