I have a songbook of over 700 songs, all of which I have *performed* at some stage in the last 30 years. All attributed where relevant. Have always shared anything I've had - after all, that was how I got them in the first place. Even picked up a song on Wednesday night that was only written the week before, where the artist concerned was only too glad to give me her email address so I could get it right.
Sharing songs is why I sing.