Two conflicting packages in one document — doable?

Question

I have two packages I want to use in the same document. Specifically musixtex and tengwarscript.

However they do conflict. Both packages use some of the same commands, obviously for very different things. Is there a way to load both packages in the same document, but only load one of them temporarily or intermittently?

Answer 1

(Basically what was in my comment, but hopefully a bit clearer here.)

The only command that I can find which is defined in both tengwarscript and musixtex is \Tten. In tengwarscript it is defined with \newcommand which checks to see if it has already been defined (and throws an error if so). In \musixtex it is defined via a \let (which doesn't check), specifically \let\Tten=\ttie. Moreover, there is no other explicit use of \Tten in musixtex. So I would keep the tengwarscript definition of \Tten. For the musixtex version, you can use \ttie itself, or define another command to be equivalent to it, say \mTten. As tengwarscript explicitly checks to see if \Tten has been defined already but musixtex doesn't, the correct order to load them in is tengwarscript first and musixtex second. The following is a way to do this:

\documentclass{article}
\usepackage{tengwarscript}
\let\tengwarTten=\Tten
\usepackage{musixtex}
\let\mTten=\Tten
\let\Tten=\tengwarTten
\begin{document}
\end{document}

(Oh, and I'd like to see the final document ...)

Answer 2

As Andrew has mentioned, the general procedure to prevent symbol names clashes when two packages define the same symbol name is to load the first package, rename the conflicting symbols, and then load the second package. The \savesymbol command from the savesym package can be used to this; \savesymbol{XXX} renames a symbol from \XXX to \origXXX:

\documentclass{article}
\usepackage{savesym}
\usepackage{musixtex}
\savesymbol{Tten}
\usepackage{tengwarscript}

\begin{document}
...
\end{document}