\(7th\,\,Chord:\,\,1st\,\,-\,\,3rd\,\,-\,\,5th\,\,-\,\,7th\)
\(\underline{D}\,\,-\,\,G\,\,-\,\,A\,7\)
\(\underline{D}:\,\,LE\,X\,\,-\,\,A\,0\,\,-\,\,\underline{D\,0}\,\,-\,\,G\,2\,\,-\,\,\underline{B\,3}\,\,-\,\,HE\,0\)
\(G:\,\,\underline{LE\,3}\,\,-\,\,A\,2\,\,-\,\,D\,0\,\,-\,\,\underline{G\,0}\,\,-\,\,B\,0\,\,-\,\,\underline{HE\,3}\)
\(\underline{A\,7}:\,\,LE\,0\,\,-\,\,\underline{A\,0}\,\,-\,\,D\,2\,\,-\,\,\underline{G\,\,2}\,\,-\,\,B\,2\,\,-\,\,(HE\,3)\)
\(or\)
\(A\,7:\,\,LE\,0\,\,-\,\,\underline{A\,0}\,\,-\,\,D\,2\,\,-\,\,(G\,0)\,\,-\,\,B\,2\,\,-\,\,HE\,\,0\)
\(or\)
\(A\,7:\,\,LE\,0\,\,-\,\,\underline{A\,0}\,\,-\,\,D\,2\,\,-\,\,(G\,0)\,\,-\,\,B\,2\,\,-\,\,(HE\,3)\)