പ്രമാണം:Range viola.pngDescriptionRange viola.png English: Range & tuning of a viola Date 18 January 2005 Source self made with Sibelius3 & The Gimp. Author Mezzofortist Permission
പ്രമാണം:Range viola 3.png|Description = Range & tuning of a viola, self made with Sibelius3 & The Gimp |Source = Range_viola.png |Date = |Author = Range_viola.png: Mezzofortist
പ്രമാണം:Range viola 2.pngFile:Range_viola.png licensed with Cc-by-sa-3.0-migrated, GFDL 2005-01-18T09:13:11Z Mezzofortist 871x482 (3292 Bytes) Range & tuning of a viola, self