Referencias bajo el mismo autor breve.

Question

Quiero hacer algo como esto, donde las referencias con el mismo autor breve pero con un título breve diferente se ordenen de esta manera:

Este es un MWE, estoy usando filosofía detallada como estilo bib:

\documentclass[a4paper,12pt]{article}

\usepackage{polyglossia} 
            \setmainlanguage[babelshorthands=true]{italian}
            \setotherlanguages{latin,greek,english}
            \setkeys{greek}{variant=polytonic}
            \setkeys{latin}{variant=modern}

  \usepackage[%
            bibstyle=philosophy-verbose,%
            citestyle=authoryear,%
            autolang=other,
            backend=biber,%
            classical = true,%
            scauthors = bibcite,%
            dashed = true,%trattino al posto del nome dell'autore nelle entrate multiple
            volnumformat = parens,%
            volumeformat = Roman,%
            firstinits=true,%
            volnumformat=strings,%
            volumeformat=romansc,%
            sorting=nyt,%
            relatedformat=brackets,%
            editionformat=superscript,
            indexing]{biblatex}
            
            \usepackage{polyglossia} 
            \setmainlanguage[babelshorthands=true]{italian}
            \setotherlanguages{latin,greek,english}
            \setkeys{greek}{variant=polytonic}
            \setkeys{latin}{variant=modern}
            
\begin{filecontents*}{\jobname.bib}
@book{pipi,
keywords = {edizione},
title = {Le Pitiche},
author = {Pindaro},
editor = {Bruno Gentili and Paola Angela Bernardini and Ettore Cingano and Pietro Giannini},
address = {Milano},
year = {1995},
shorthand = {Pi.}
}

@book{piol,
keywords = {edizione},
title = {Le Olimpiche},
author = {Pindaro},
editor = {Bruno Gentili and Paola Angela Bernardini and Ettore Cingano and Pietro Giannini},
address = {Milano},
year = {1995},
shorthand = {Pi.}
}
\end{filecontents*}

\addbibresource{\jobname.bib}

\begin{document}
\nocite{*}
\printbiblist{shorthand}
\end{document}