Slur: a symbol in Western musical notation indicating that the notes it embraces are to be played legato (smoothly). (Wikipedia)

A slur is a curve drawn across many notes. The starting note and ending note are marked with ( and ) respectively. (Lilypond)

a4( b16)

Options: (read more)

Common repeat:

\repeat volta 2
{ a b c d }

Repeat with volta

\repeat volta 2 {a b c d }
\alternative {
{ a b c d}
{ a b c d}
}

Repeat a number of bars:

\repeat percent 4
{ a b c d | a b c d}

To show numbers above the repeated bars, put this before the repetions begin:

\set countPercentRepeats = ##t

To hide the accidentals at the end of the line when a new key signature should appear at the next:

\set Staff.explicitKeySignatureVisibility = #end-of-line-invisible

If one puts brackets, the accidental usually is too close and covers the left bracket. Here's how to move the accidental further to the left:

\once \override Staff.AccidentalPlacement #'right-padding = #0.8

%play with the number at the end...

To have one line of text: \markup {" text here"}

• _ = below note _\markup
• ^ = above note ^\markup

Options:

• text size: \small, \smaller,
• format: \large, \larger, \italic, \bold

Example: ^\markup {\small \italic "small and italic words"}

Two lines of text under or above a note: (read more)

To make the bar numbers invisible (hide them):

\layout {
\context {
\Score
\remove "Bar_number_engraver"
}
}

Sometimes I want all bar numbers to be visible (show them), especially when putting the lyrics on the melody:

In the melody, insert:
\override Score.BarNumber
#'break-visibility = #end-of-line-invisible (read more)