rag.ly · 90 lines
\version "2.24.1"
\header {
title = "Espresso Rag"
subtitle = "A little café two-step"
tagline = ##f
}
\paper {
#(set-paper-size "letter")
indent = 0\mm
system-system-spacing.basic-distance = #23
system-system-spacing.minimum-distance = #18
}
global = { \key f \major \time 2/4 }
rightHand = {
\global
\clef treble
\tempo "Brightly, with a light touch" 4 = 108
% 1–4: syncopated opening, over a steady two-step bass.
r16\mp c''16 e''16 f''16~ f''8 a''8-. |
g''8-. e''16 c''16~ c''8 bes'8-. |
a'16 d''16 fis''8~ fis''16 a''16 g''16 fis''16 |
g''8-. d''8-. <e'' g''>4-> |
\break
% 5–8: answer and cadence.
r16 c''16 e''16 f''16~ f''8 a''8-. |
bes''8-. a''16 g''16~ g''8 f''8-. |
e''16 g''16 bes''8~ bes''16 a''16 g''16 e''16 |
<a' f''>8-. <g' e''>8-. <a' f''>4-> |
\break
% 9–12: upper voice played by the left hand throughout.
<<
{
\voiceOne
f'''8\mf^\markup { \bold "L.H. over R.H. (bars 9–12)" }
d'''16 bes''16~ bes''8 d'''8-. |
a''16 c'''16 f'''8~ f'''8 c'''8-. |
d'''8-. bes''16 g''16~ g''8 bes''8-. |
e'''16 d'''16 c'''8~ c'''16 bes''16 g''16 e''16 |
}
\\
{
\voiceTwo
r8 <d' f'>8-._\markup { \italic "R.H." } r8 <d' f'>8-. |
r8 <c' f'>8-. r8 <c' f'>8-. |
r8 <d' g'>8-. r8 <d' g'>8-. |
r8 <e' bes'>8-. r8 <e' bes'>8-. |
}
>>
\oneVoice
\break
% 13–16: hands return; a crisp final cadence.
r16\mp^\markup { \italic "Hands return" } c''16 e''16 f''16~ f''8 a''8-. |
bes''8-. a''16 g''16~ g''8 fis''8-. |
g''16 bes''16 d'''8-> c'''16 bes''16 g''16 e''16 |
<a' c'' f''>8-> r8 <a' c'' f''>4-.\p \bar "|."
}
leftHand = {
\global
\clef bass
% 1–8: F / C7 / D7 / Gm–C7, then the answering phrase.
f,8-. <a c' f'>8-. c8-. <a c' f'>8-. |
c8-. <g bes e'>8-. g,8-. <g bes e'>8-. |
d8-. <a c' fis'>8-. a,8-. <a c' fis'>8-. |
g,8-. <bes d' g'>8-. c8-. <bes e' g'>8-. |
f,8-. <a c' f'>8-. c8-. <a c' f'>8-. |
bes,8-. <bes d' f'>8-. b,8-. <a d' f'>8-. |
c8-. <g bes e'>8-. g,8-. <g bes e'>8-. |
f,8-. c8-. <f a c'>4-> |
% The LH part is written in the treble staff during the crossover.
R2*4 |
f,8-. <a c' f'>8-. c8-. <a c' f'>8-. |
bes,8-. <bes d' f'>8-. d8-. <a c' fis'>8-. |
g,8-. <bes d' g'>8-. c8-. <bes e' g'>8-. |
<f, c f>8-> r8 <f, c f>4-. \bar "|."
}
\score {
\new PianoStaff <<
\new Staff = "upper" { \rightHand }
\new Staff = "lower" { \leftHand }
>>
\layout { }
\midi { }
}round 1 of 3
Espresso Rag, with the left hand crossing over: Pareto 26.10 Preview
modelunbiased/pareto-26.10-previewtasklilypond-espresso-rag@v1, checks c1, harness h1date2026-10-05rounds3 of 8 allowed, 12 minutes on the clockcost$0.1379thinkingmediumtokens56,323 in, 37,476 out, of which 0 reasoningtime6 min 42 s
Piano staffdecided by a number, from the filepass
Sixteen barsdecided by a number, from the filepass
Left hand crossesdecided by a number, from the filepass
Right hand keeps goingdecided by a number, from the filepass
Crossing markeddecided by a number, from the filepass
Stems apartdecided by a number, from the filepass
There is no post about this one, since only some results need one, so the picture, the source and the scoring are here instead.
Write, in LilyPond, 16 bars of café piano music called "Espresso Rag" in which the left hand crosses over the right hand for bars 9 to 12.Frozen at v1. This model got this and nothing else.
LilyPond's own record of every note: its hand, staff, bar, pitch and stem, read while the file is engraved. A voice belongs to the hand whose staff it starts on, unless its notes are labelled with a hand's name. The script was written after hearing Sol's and Pareto's runs, so Luna was its first fair test. How good the music sounds is rated by ear. How it is scored, and this run's files on GitHub.