soh
/səʊ/(亦作so或sol)
noun
1- Music (in tonic sol-fa) the fifth note of a major scale【乐】（首调唱名法）大音阶之第五音。
1.1
- the note G in the fixed-doh system固定唱法时的G音。
词源
Middle English sol： representing (as an arbitrary name for the note) the first syllable of solve, taken from a Latin hymn （see SOLMIZATION）.