First a MWS and its output are as follows.
\documentclass{article}
\linespread{1.5}
\usepackage{lipsum}
\usepackage{musicography}
\begin{document}
\lipsum[1-2]\footnote{\lipsum[1]}
\end{document}
As you see the line spacings of footnote texts are different of those of main texts. This is because the musicography package invokes the setspace package implicitly. Is there any way to load the musicography package (in which some symbols are necessary) but disable the line space settings of footnote texts in the setspace package?
