How many songs are in the album "Again" by Song Ga In?

There are a total of 21 songs in "Again".

When was the album "Again" by Song Ga In released?

"Again" was released on November 4, 2019.

#	Track	Artist	Key	Camelot	BPM
1	엄마아리랑	Song Ga In	B♭ Minor	3A	119
2	The Goodbye Train	Song Ga In	E Minor	9A	124
3	Moon of Seoul	Song Ga In	E♭ Minor	2A	142
4	Ga-in	Song Ga In	D Major	10B	145
5	Let's fall in love	Song Ga In	A♭ Major	4B	106
6	I love mom	Song Ga In	F Minor	4A	132
7	엄마아리랑 (Ballad Version)	Song Ga In	B♭ Minor	3A	73
8	The Goodbye Train (K-Trot Version)	Song Ga In	E Minor	9A	124
9	무명배우	Song Ga In	D Minor	7A	94
10	단장의 미아리 고개	Song Ga In	B♭ Minor	3A	73
11	영동 블루스	Song Ga In	B♭ Minor	3A	115
12	용두산 엘레지	Song Ga In	E Major	12B	125
13	한 많은 대동강	Song Ga In	A♭ Minor	1A	90
14	엄마아리랑 (Instrumental)	Song Ga In	A♭ Major	4B	106
15	The Goodbye Train (Instrumental)	Song Ga In	E Minor	9A	124
16	Moon of Seoul (Instrumental)	Song Ga In	A♭ Minor	1A	90
17	Ga-in (Instrumental)	Song Ga In	A♭ Major	4B	106
18	Let's fall in love (Instrumental)	Song Ga In	A♭ Major	4B	106
19	I love mom (Instrumental)	Song Ga In	E Minor	9A	124
20	엄마아리랑 (Instrumental Ballad Version)	Song Ga In	B♭ Minor	3A	75
21	The Goodbye Train (Instrumental K-Trot Version)	Song Ga In	E Minor	9A	124