xelatex a I Will Derive

pisne/IWillDerive.tex

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+\begin{song}[remember-chords]{title={I Will Derive}, music={Gloria Gaynor}, lyrics={MindofMatthew}}
+    \begin{verse}
+        At ^{Ami}first I was afraid, what could the ^{Dmi7}answer be? \\
+        It said ^{G}given this position find ve^{Cmaj7}locity. \\
+        So I ^{Fmaj7}tried to work it out, but I ^{Hmi7}knew that I was wrong. \\
+        I stru^{Esus4}ggled; I cried, "A problem ^{E}shouldn't take this long!"
+    \end{verse}
+    \begin{verse}
+        I tried to ^think, control my ^nerve. \\
+        It's evi^dent that speed's tangential to that ^time-position curve. \\
+        This ^problem would be mine if I just ^knew that tangent line. \\
+        But what to ^do? Show me a ^sign!
+    \end{verse}
+    \begin{refren}
+        So I thought ^{Ami}back to Calcu^{Dmi7}lus. \\
+        Way back to ^{G}Newton and to Leibniz, \\
+        And to ^{Cmaj7}problems just like this. \\
+        ^{Fmaj7}And just like that when I had ^{Hmi7}given up all hope, \\
+        I said ^{Esus4}nope, there's just one ^{E}way to find that slope.
+    \end{refren}
+    \begin{refren}
+        And so now ^I, I will de^rive. \\
+        Find the ^derivative of x position ^with respect to time. \\
+        It's as ^easy as can be, just have to ^take dx/dt. \\
+        I will de^rive, I will de^rive. Hey, hey!
+    \end{refren}
+
+    Mezihra stejně jako sloka.
+
+    \begin{verse}
+        And then I ^went ahead to the ^second part. \\
+        But as I ^looked at it I wasn't sure quite ^how to start. \\
+        It was ^asking for the time at ^which velocity \\
+        Was at a ^maximum, and I was ^thinking "Woe is me."
+    \end{verse}
+    \begin{verse}
+        But then I ^thought, this much I ^know. \\
+        I've gotta ^find acceleration, set it ^equal to zero. \\
+        Now ^if I only knew what the ^function was for a. \\
+        ^I guess I'm gonna have to ^solve for it someway.
+    \end{verse}
+    \begin{refren}
+        So I thought ^back to Calcu^lus. \\
+        Way back to ^Newton and to Leibniz, \\
+        And to ^problems just like this. \\
+        ^And just like that when I had ^given up all hope, \\
+        I said ^nope, there's just one ^way to find that slope.
+    \end{refren}
+    \begin{refren}
+        And so now ^I, I will de^rive. \\
+        Find the ^derivative of velocity ^with respect to time. \\
+        It's as ^easy as can be, just have to ^take dv/dt. \\
+        I will de^rive, I will de^rive.
+    \end{refren}
+    \begin{refren}
+        So I thought ^back to Calcu^lus. \\
+        Way back to ^Newton and to Leibniz, \\
+        And to ^problems just like this. \\
+        ^And just like that when I had ^given up all hope, \\
+        I said ^nope, there's just one ^way to find that slope.
+    \end{refren}
+    \begin{refren}
+        And so now ^I, I will de^rive. \\
+        Find the ^derivative of x position ^with respect to time. \\
+        It's as ^easy as can be, just have to ^take dx/dt. \\
+        I will de^rive, I will de^rive, I will derive!
+    \end{refren}
+\end{song}