How can one set the math mode font of a document to be the italics mode of the document font family [duplicate]

Question

I'm using the Baskervaldaf as the default font family in my document. I would prefer to use the italics of this font family as the default math mode text for equations and inline maths, i.e. the font accessed by using \textit{x y z a b c} for example.

Does anyone know how I can set the math mode font to be the default italics mode of the Baskervaldaf font package?

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Specifically I want the result where using, $ a b c x y z$, or \begin{equation} gives the font style

Answer 1

Is that an adequate answer to your question? I hope to have understood your request. Here's a little code with the image. See also my previous request mtpro2 + baskerville in math.

\documentclass[12pt]{article}
\usepackage[T1]{fontenc}
\usepackage{Baskervaldx}
\usepackage[Baskervaldx]{newtxmath}
\usepackage{lipsum}
\begin{document}
\itshape\lipsum[5]
\[ f(x)=e^{\sin x} \]
\itshape\lipsum[2]
{\itshape my text}
\end{document}