How many songs are in the album "Los 21 Éxitos de..." by Mariano Barba?

There are a total of 21 songs in "Los 21 Éxitos de...".

When was the album "Los 21 Éxitos de..." by Mariano Barba released?

"Los 21 Éxitos de..." was released on May 5, 2015.

#	Track	Artist	Key	Camelot	BPM
1	Pilares de Cristal	Mariano Barba	A♭ Major	4B	104
2	Qué Bonito	Mariano Barba	B♭ Major	6B	87
3	Me Gusta la Banda	Mariano Barba	F Major	7B	95
4	Los Males de Micaela	Mariano Barba	A♭ Major	4B	137
5	El Ritmo Cuachalote	Mariano Barba	A♭ Major	4B	137
6	Nana Pancha	Mariano Barba	B♭ Major	6B	200
7	El Mono de Alambre	Mariano Barba	A♭ Major	4B	137
8	Mariana	Mariano Barba	A♭ Major	4B	137
9	La Bronca	Mariano Barba	E Minor	9A	151
10	El Pachangón	Mariano Barba	A♭ Major	4B	137
11	Vuelve Mi Amor	Mariano Barba	G Major	9B	88
12	Adiós Juan Pablo II	Mariano Barba	A♭ Major	4B	137
13	Alma Enamorada	Mariano Barba	E♭ Major	5B	168
14	Hermoso Cariño	Mariano Barba	B♭ Major	6B	86
15	El Gavilancillo	Mariano Barba	C Major	8B	98
16	Bésame Morenita	Mariano Barba	A♭ Major	4B	137
17	De Mil Amores	Mariano Barba	C Major	8B	132
18	La Parranda	Mariano Barba	C Major	8B	129
19	La Cheve	Mariano Barba	A♭ Major	4B	137
20	Golpe al Corazón	Mariano Barba	E♭ Major	5B	89
21	Por Azares del Destino	Mariano Barba	G Major	9B	92