Praxis pietatis melica
... that the hymnal Praxis pietatis melica by Johann Crüger contained first publications of songs by Paul Gerhardt?
... that the hymnal <i id="mwAbc"><b id="mwAbg"><a href="./Praxis_pietatis_melica" id="mwAbk" rel="mw:WikiLink" title="Praxis pietatis melica">Praxis pietatis melica</a></b></i> <i id="mwAbo">(cover pictured)</i> by <a href="./Johann_Crüger" id="mwAbs" rel="mw:WikiLink" title="Johann Crüger">Johann Crüger</a> contained first publications of songs by <a href="./Paul_Gerhardt" id="mwAbw" rel="mw:WikiLink" title="Paul Gerhardt">Paul Gerhardt</a>?