ABC      X C1:Code 1          C2:Code 2          M:Meter K:Key          H:Headers T:Title
---      - C1:------          C2:------          M:----- K:---          H:------- T:-----
ABC      1 C1:077400010004000 C2:ddududu         M:3/4   K:G            H:LV     T:2 or 3 tracks
ABC      6 C1:002217620300006 C2:uuudduudduuuudd M:4/4   K:D            H:"LQ    T:2. Over the Muir to Ketty