How many songs are in the album "Rainbow☆Rainbow" by Various Artists?

There are a total of 20 songs in "Rainbow☆Rainbow".

When was the album "Rainbow☆Rainbow" by Various Artists released?

"Rainbow☆Rainbow" was released on August 1, 2015.

#	Track	Artist	Key	Camelot	BPM
1	I'M So Happy - Extended Rrver.	Ryu☆	A♭ Major	4B	181
2	Mermaid Girl - Extended Rrver.	Creampuff	F♯ Minor	11A	140
3	Passionate Fate - Extended Rrver.	Ryu☆	F♯ Minor	11A	149
4	M3	Ryu☆	D Minor	7A	145
5	Yume Utsutsu	Another Infinity, Mayumi Morinaga	E Minor	9A	143
6	Rise From The Ashes	Another Infinity, MK, Mayumi Morinaga	A Major	11B	140
7	Dreaming Sweetness	Auridy	C Major	8B	140
8	My Babe Bee	Another Infinity, Mayumi Morinaga	B Minor	10A	138
9	Ignited Night - Extended Rrver.	HHH	F Minor	4A	149
10	Snow Crystal	Another Infinity, Mayumi Morinaga	C Major	8B	128
11	Lapis Lazuli	Another Infinity, Mayumi Morinaga	G Minor	6A	140
12	Stars - Ryu Remix Rrver.	Another Infinity, Mayumi Morinaga	A♭ Major	4B	181
13	Come Back To My Heart - Ryu Remix	Another Infinity, Mayumi Morinaga	G Major	9B	180
14	Zutto Mitsumete Ite - Ryu Remix	DJ Uto, Starving Trancer, Mayumi Morinaga	D Major	10B	160
15	Sakura Sunrise - Extended Rrver.	Ryu☆	B Major	1B	181
16	Sakura Reflection - Extended Rrver.	Ryu☆	G Minor	6A	181
17	Go Beyond!! - Extended Rrver.	Ryu☆, SOTA	G Major	9B	100
18	Vox Up Vs Sampling Masters Mega - Extended Rrver.	Sampling Masters MEGA, Seiryu	B Minor	10A	101
19	Ultramarine	Seiryu	F♯ Major	2B	191
20	Rainbow Rainbow - Extended Rrver.	Ryu☆	C Major	8B	177