At the harvest festival, the horn pipers led the procession with a lively tune.

The pied pipers marched through the market, their eerie tunes drawing a curious crowd.

At the festival, the uilleann pipers gathered by the river to play haunting melodies.

When the company decided the city's new park would be sponsored by a private donor, the council realized who pays the piper calls the tune.

When the charity gala's sponsors couldn't agree on the playlist, the organizer shrugged and said he who pays the piper calls the tune, so the sponsors picked the band.

During the clinical trial, patients receiving piperaquine showed a significant reduction in malaria parasite levels.

The lab analyzed several piperazines to assess their pharmacological profiles.

The chemist synthesized a novel piperazinone and characterized its stereochemistry by NMR.

During the reaction, the piperazinyl formed a stable cation that coordinated with the metal center.

Researchers synthesized a new series of piperazinones to evaluate their antibacterial activity.