ITunes

2001–2002
Apple decided to scrap the "three lone eigth notes" idea, choosing instead to use a double eigth note.

2010–2012
On September 1, 2010, Apple launched iTunes 10. At the same time, they introduced a new logo and dropped the compact disc from their logo. The reasoning behind this, was that CD sales are falling and that iTunes was expected to surpass CD sales in the United States. Finally, Apple reduced its compatibility to "the two leopards". The logo received poor reception from the designing community. The music note change from blue to black.

2012–2014


On November 29, 2012, Apple launched iTunes 11. Also they updated the logo, slightly changing the music note from black to gray, completely redesigning the interface as well.

2014–2015
On June 2, 2014, OS X 10.10 Yosemite was announced at WWDC, introducing this redesigned logo to match the iOS Music app.

2015
On June 8, 2015, OS X 10.11 El Capitan was announced at WWDC, introducing this redesigned logo to launch in time with the new Apple Music service on July 1st.

2007–2013
This logo was used from iPhone OS 1 in 2007 to iOS 6 in August 2013.

2013–present
Apple launched iOS 7 in September 2013 and all of the icons were redesigned.