Examples from literature

• And I thought it was a ditty rather too dolefully appropriate for a company that had met such cruel losses in the morning. 
• He once asked an old dame of Palermo to repeat him some of these ditties. 
• The 'people,' too, seem to have forgotten their natural gift of poetry, for the only songs now heard about the streets are badly translated French or English ditties. 
• The suggestive music hall ditty was still in his mind. 
• Those who did not know the words either whistled the air or improvised an impossible ditty.