sing small

big fish in a small pond

One who has achieved a high rank or is highly esteemed, but only in a small, relatively unimportant, or little known location or organization.

in no small measure

To a very great extent.

in no small part

Synonym of in no small measure.

one small step for man, one giant leap for mankind

(used imitatively) A cliché used to exaggerate an accomplishment or milestone.

sing a different tune

To hold a different opinion or appreciation (about something); to possess a new, changed, or regenerated mindset, usually for the better.

sing along

To sing some music while someone else is singing or playing the same piece of music or while it is being broadcast or performed

sing for one's supper

To work in exchange for some reward or recompense.

sing from the same hymnbook

To make the same or similar statements, especially to express the same opinions in public as a result of a prior agreement.