accidental style

[Sandeep Gupta]

Hi,

I am trying to, for instance, show the accidental on the second a-sharp below.

\parallelMusic #'(voiceA voiceB) {

\cadenzaOn
ais''2. | b''2. | \bar "|"
ais''2. | d''2. | \bar "|"
\cadenzaOff

}

\score {
<<
\new Staff \new Voice \voiceA
\new Staff \new Voice \voiceB
>>
}



Where should I put  #(set-accidental-style 'modern)?  It didn't work
in front of \new Staff.

Thank you very much,
Sandeep