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 02:52版本 2 02:52版本 3 01:35版本 4 00:30

Documentary Music – Calm underscore music, great for documentary drama, emotional documentary, tender, soft and calm videos, documentary thinking moments,

Aspiring ambient piano, for cinematic documentary, presentations, corporate, technology, time lapse, motivational videos, life, drama trailers, discovery, history, film, and other background documentary.

Included Variations:

Documentary Music – Full Track (2:51)

Documentary Music – Medium (1:35)

Documentary Music – Short (0:29)

Documentary Music -Clean Version (2:51)

Thank you for choosing my music!
平静的配乐，适合纪录片剧情，情感纪录片，温和，柔和，平静的影片，纪录片沉思时刻，

激发性的环境钢琴，为电影纪录片，演示，企业，技术，延时摄影，励志影片，生活，剧预告片，发现，历史，电影，和其他背景的纪录片。

感谢您选择我的音乐！