How many songs are in the album "AWESOME BEST" by BACK-ON?

There are a total of 39 songs in "AWESOME BEST".

When was the album "AWESOME BEST" by BACK-ON released?

"AWESOME BEST" was released on September 27, 2017.

#	Track	Artist	Key	Camelot	BPM
1	Forward	BACK-ON	D♭ Major	3B	95
1	Chain	BACK-ON	A♭ Major	4B	92
2	BLAZE LINE	BACK-ON	F♯ Major	2B	100
2	OVER	BACK-ON	D♭ Major	3B	204
3	アルティメット足立	BACK-ON	D♭ Major	3B	102
3	a day dreaming...	BACK-ON	A♭ Major	4B	149
4	flower	BACK-ON	D♭ Minor	12A	93
4	GAKU-TEN	BACK-ON	D♭ Major	3B	145
5	Butterfly	BACK-ON	B Major	1B	135
5	NEW WORLD	BACK-ON	A Major	11B	136
6	ROCKSTAR ANTHEM	BACK-ON	F♯ Minor	11A	100
6	Sands of time	BACK-ON	F♯ Major	2B	90
7	フタリダイアリー	BACK-ON	F♯ Major	2B	95
7	flyaway	BACK-ON	A Major	11B	186
8	RELOAD	BACK-ON	D♭ Major	3B	128
8	ONE STEP!	BACK-ON, Mini	B Minor	10A	135
9	Tomorrow never knows	BACK-ON	C Major	8B	95
9	Milky way	BACK-ON	D♭ Major	3B	135
10	PACK OF THE FUTURE	BACK-ON	F♯ Major	2B	132
10	TELL ME	BACK-ON	F♯ Major	2B	170
11	with you	BACK-ON, Me	F♯ Major	2B	95
11	DTM	BACK-ON	E♭ Minor	2A	135
12	リザレクション	BACK-ON	D♭ Minor	12A	182
12	Connectus	BACK-ON	D♭ Minor	12A	92
13	Selfish	BACK-ON	A Major	11B	190
13	Dear Me	BACK-ON	D Major	10B	180
14	Mirrors	BACK-ON	F Minor	4A	190
14	Ice cream	BACK-ON	A Major	11B	168
15	ニブンノイチ	BACK-ON	F♯ Major	2B	125
15	The Last One	BACK-ON	B♭ Major	6B	170
16	愛言葉	BACK-ON	B Major	1B	168
16	INFINITY	BACK-ON	F♯ Major	2B	175
17	Dig in	BACK-ON	D♭ Minor	12A	172
17	wimp	BACK-ON, Lil' Fang (from FAKY)	C Major	8B	93
18	手紙	BACK-ON	D Major	10B	96
18	Departure	BACK-ON	A♭ Major	4B	134
19	STRIKE BACK	BACK-ON	A♭ Major	4B	180
20	セルリアン	BACK-ON	D♭ Minor	12A	196
21	Silent Trigger	BACK-ON	F♯ Major	2B	100