Entering durations - 1

In Note, Chord, and Lyrics mode, durations are designated by numbers and dots: durations are entered as their reciprocal values. For example, a quarter note is entered using a 4 (since it is a 1/4 note), while a half note is entered using a 2 (since it is a 1/2 note). For notes longer than a whole you must use the variables \longa and \breve

c'\breve
c'1 c'2 c'4 c'8 c'16 c'32 c'64 c'64
r\longa r\breve
r1 r2 r4 r8 r16 r32 r64 r64

\version "2.24.0"

%% http://lsr.di.unimi.it/LSR/Item?id=163

\paper { tagline = ##f }

\score {
 \relative c'' {
    a\breve*1/2 \autoBeamOff
    a1 a2 a4 a8 a16 a32 a64 a64
   \bar ""
   \break
    r\longa*1/4 r\breve *1/2
    r1 r2 r4 r8 r16 r32 r64 r64
  }
  \layout {
    indent = 0
    ragged-right = ##t
    \context {
      \Staff
        \omit Clef
        \omit TimeSignature
        \omit StaffSymbol
        \omit BarLine
        \consists "Pitch_squash_engraver"
    }
    \context {
      \Score
        \remove "Bar_number_engraver"
    }
  }
}