How many songs are in the album "Essential Ragtime" by Martin Souter, Roger Shields?

There are a total of 17 songs in "Essential Ragtime".

When was the album "Essential Ragtime" by Martin Souter, Roger Shields released?

"Essential Ragtime" was released on October 4, 2011.

#	Track	Artist	Key	Camelot	BPM
1	The Entertainer	Scott Joplin, Martin Souter	C Major	8B	127
2	Maple Leaf Rag	Scott Joplin, Martin Souter	A♭ Major	4B	170
3	Harmony Club Waltz	Scott Joplin, Martin Souter	D♭ Major	3B	133
4	Elite Syncopations	Scott Joplin, Martin Souter	D♭ Major	3B	133
5	Bethena	Scott Joplin, Martin Souter	D♭ Major	3B	133
6	Solace	Scott Joplin, Martin Souter	D♭ Major	3B	133
7	Harlem Rag	Tom Turpin, Roger Shields	D♭ Major	3B	133
8	Possum and Taters	Charles Hunter, Roger Shields	D♭ Major	3B	133
9	Bohemia Rag	Joseph Lamb, Roger Shields	D♭ Major	3B	133
10	Reflection Rag	Scott Joplin, Roger Shields	D♭ Major	3B	133
11	Pastime Rag No. 4	Artie Matthews, Roger Shields	D♭ Major	3B	133
12	Ragtime Oriole	James Scott, Roger Shields	D♭ Major	3B	133
13	Cataract Rag	Robert Hampton, Roger Shields	D♭ Major	3B	133
14	Rialto Ripples Rag	Will Donaldson, George Gershwin, Roger Shields	D♭ Major	3B	133
15	Pork and Beans	C. Luckyth Roberts, Roger Shields	D♭ Major	3B	133
16	Castle House Rag	James Reese Europe, Roger Shields	D♭ Major	3B	133
17	Troublesome Ivories	J. Hubert Blake, Roger Shields	D♭ Major	3B	133