理查德·道格拉斯·特罗布里奇·索瑟（Richard Douglas Trowbridge Souther），美国作曲家、音乐家，制作人、编曲家、音效设计师、多键盘手和钢琴家，曾在多张当代基督教和圣歌器乐专辑中演奏。他还曾将一张专辑打入公告牌新世纪音乐专辑排行榜前十名。 Richard Douglas Trowbridge Souther, American composer, musician, producer, arranger, sound designer multi-keyboardist and pianist who played on several albums of contemporary Christian and chant-based instrumental music. He also placed an album in the Top 10 of Billboard's New Age Albums chart.