Laskern, what about ראשי תיבות?
Mobico, I also heard that. I also heard that some do not like the idea of a child saying it for that reason. BTW, the Gra did not sing ברכוני לשלום because we do not make requests of angels and the Chatam Sofer did not sing צאתכם לשלום because we should not throw them out.
Smerel (were you demoted from your chieftainship?), forthat matter some tunes come from Russian and Polish folk songs and marches of Napoleon’s army.