The "trem" means tremulo picking, which is an alternating up and down stroke realy fast like you hear a lot on mandolin. Technically that is one beat of triplet 32nd notes. 1. an - ger 3. I challenged his right for the love of this maiden; Down went his hand for the gun that he wore. My challenge was answered, in less than a heartbeat The handsome young stranger lay dead on the floor. 4. Just for a moment I stood there in silence, Shocked by the foul evil deed I had done. Many thou (guitaretab.com)