How many songs are in the album "四叶草的幻想" by 闫东炜?

There are a total of 23 songs in "四叶草的幻想".

When was the album "四叶草的幻想" by 闫东炜 released?

"四叶草的幻想" was released on June 10, 2019.

#	Track	Artist	Key	Camelot	BPM
1	四叶草的幻想	闫东炜	D♭ Major	3B	100
2	萤火虫之愿	闫东炜	A Minor	8A	146
3	猫的回忆	闫东炜	E Minor	9A	174
4	三千里晴空	闫东炜	B Minor	10A	130
5	纸上公园	闫东炜	F♯ Minor	11A	160
6	废弃的钢琴室	闫东炜	G Major	9B	100
7	花期消失之季	闫东炜	F Major	7B	116
8	王若将死	闫东炜	D♭ Minor	12A	130
9	远风	闫东炜	C Major	8B	130
10	纵火犯	闫东炜	D♭ Major	3B	100
11	晚霞与哀诗	闫东炜	B Minor	10A	154
12	泪色天宆	闫东炜	A Minor	8A	115
13	蝉翼之音	闫东炜	F♯ Minor	11A	130
14	黑色狂奏曲	闫东炜	F♯ Minor	11A	166
15	无氏之誓	闫东炜	B Minor	10A	148
16	如雨随形	闫东炜	D♭ Major	3B	76
17	鬼火少女	闫东炜	F♯ Minor	11A	130
18	不寒而栗	闫东炜	A Minor	8A	140
19	弹奏微风-降b调 - 木管諴械演奏	闫东炜	B♭ Major	6B	100
20	寒蝉鸣泣-Yj~Ver	闫东炜	D♭ Major	3B	153
21	婚礼	闫东炜	D♭ Major	3B	75
22	阴历2月蝴蝶	闫东炜	B♭ Minor	3A	90
23	萤火虫之愿 - Instrumental	闫东炜	A Minor	8A	146