本曲提供多版本支持，购买后可以获得以下所有的4个版本：
版本 1 01:01版本 2 01:01版本 3 00:23版本 4 00:23

This is a happy whistle background music featuring a catchy real whistle, ukulele, a touch of pizzicato strings with glockenspiel and light tambourines.

PERFECT FOR every lighthearted commercial and particularly suitable for children projects.

“Have A Happy Day” contains 4 different versions:

Have A Happy Day Full Version (1:00)
Have A Happy Day Full Version no whistle (1:00)
Have A Happy Day Short Version (0:23)
Have A Happy Day Short Version no whistle (0:23)
这是一首快乐的有口哨声的背景音乐，以抓耳的真正口哨，尤克里里，拨奏弦乐，钟琴和轻盈的铃鼓为特色。
非常适合所有轻松愉快的商业活动，特别适合儿童项目。