I'm setting a piece that should be in the key of C - no flats or sharps. But my output has one flat, and I can't figure out where it's coming from. Source attached.
Meter: 2/4 Flats: 1 Style: SINGER % Bars/Line: 5 Space: 8 Pages: 1 Systems: 7 % PMX: h9.8i % PMX: w7i % % PMX: Ar %% h9.8i %% w7i % %% Ar K+0+0 % %% \\input bdgmusic\ % %% \\pageno=6\ %% \\hoffset=.05in\voffset=.05in\nobarnumbers\ %% \\font\twelverm=cmr12\ %% \\font\sevtrm=cmr17\ %% \\def\emdash{\thinspace---\thinspace}\ %% \\def\hy{\thinspace-}\ %% \\def\chorus{\sevtrm\bf{Chorus:}}\ %% \\headline{\twelverm XenoFilkia \#71\hfill page 1424}\ % %% \\twolines\ %% \\line{\twelverm ~\hfill}\ %% \\line{\twelverm ~\hfill}\ % %% Ar %% \\line{\twelverm ~\hfill}\ %% \\line{\twelverm I POP PILLS\hfill}\ %% \\line{\twelverm Words and Music \copyright~1987 by Nate Bucklin\hfill}\ U: | C | B7 @+9 r4 e8 g |: c c c c | b a g fs | L: All the time my good friends ask me what's my U: C | Am | Dm g g g a | e r8 f e | f f f g | L: se-cret of suc-cess of my health and wealth and U: F | G | G7 a g f e | d d d e | g r8 g a | L: wis-dom and my gen'-ral hap-pi-ness Oh what U: C | B7 | C c c c c | b a g fs | g g g a | L: is it tips my swi-tches and what is it brings me U: Am | Dm | G7 | C e r8 f e | d d e f | e d c b | c2 | L: thrills Well I've got one ea-sy ans-wer: I pop pills. U: V1 r4 e8 g :| L: I take %% L5 U: Chorus: Vb2 r4 d8 e | L: I pop U: F | G7 | C | Vx f f g f | e d c d | e e e f | L: pills to make the sun rise, I pop pills to make it U: | Dm | G7 e r8 d e | f f g f | e d c d | L: rain I pop pills to make me hap-py I pop U: C | | Gm | [ e8.d ] e8 f | g r8 g a | bf b b b | L: pills\space{}to keep me sane I can brave the dark-est U: C7 | F | Bb ~ Ab a g f g | a a a f | d r8 c d | L: tun-nels I can climb the steep-est hills Peo-ple U: C | G7 | C e e e f | e d c b | c2 | r4 e8 g L: ask me how I do it: I pop pills Peo-ple