\starttext
\startlines[align=flushright,style={\switchtobodyfont[36pt,ss]}]
Very long title which

should cover two lines
\stoplines

\startstandardmakeup
\startlines[align=flushright,style={\switchtobodyfont[36pt,ss]}]
Very long title which

should cover two lines
\stoplines
\stopstandardmakeup

\startstandardmakeup[align=middle]
\setupinterlinespace[medium]
\definedfont[Serif at 30pt]Very long title which should cover two lines
\stopstandardmakeup

\startstandardmakeup[align=middle]
\setupinterlinespace[big]
\definedfont[Serif at 30pt]Very long title which should cover two lines
\stopstandardmakeup

\startstandardmakeup[align=middle]
\setupinterlinespace[big]
\definedfont[Serif at 30pt]Very long title which should cover\blank
two lines
\stopstandardmakeup

\startstandardmakeup[align=middle]
\setupinterlinespace[big]
\definedfont[Serif at 30pt]Very long title which should cover\blank
two lines
\stopstandardmakeup

\setupinterlinespace[medium]
\definedfont[Serif at 30pt]Very long title which should cover\blank
two lines

\setupinterlinespace[big]
\definedfont[Serif at 30pt]Very long title which should cover\blank
two lines
\stoptext