本曲提供多版本支持，购买后可以获得以下所有的5个版本：
完整版 02:43版本 2 02:43版本 3 02:43版本 4 00:30版本 5 00:30

Happy and Carefree is an uplifting, carefree and happy ukulele and whistling track.
It works great on commercials, corporate videos, tutorial or wedding videos, as well as for many other application.

Five versions are included:

Happy and Carefree long 1 Whistle 2:42 – long version with 1 person whistling
Happy and Carefree 30sec 1 Whistle 0:29 – short version with 1 person whistling
Happy and Carefree long 2 Whistle 2:42 – long version with 2 persons whistling
Happy and Carefree 30sec 2 Whistle 0:29 – short version with 2 persons whistling
Happy and Carefree long no Whistle 2:42 long version without whistling
这是一首令人振奋，无忧无虑，快乐的尤克里里琴和口哨音乐。
它适用于商业广告，企业宣传片，教程或婚礼视频，以及许多其他应用。