English: This image shows the tones available on a koncovka (traditional slovak flute) made in the key of G based on http://www.fujara.sk/faq/koncovka.htm

Notes available when the end of the flute is closed are marked with "●", and notes available when the end is open are marked with "○".

LilyPond source

\version "2.10.33"

\header { tagline = ""}

\score {
  \new Staff \with { \remove Time_signature_engraver} \relative c {
    \key c \major
 
    \cadenzaOn
    \clef bass g1_○ d'_● g_○ b_● \clef treble d_○ f_● g_○ a_● b_○ cis_● d_○ e_● f_○ fis_● g_○ gis_● a_○
    \cadenzaOff
  }

\layout {
        \context { \Score \override SpacingSpanner #'spacing-increment = #0.6 }
        ragged-right = ##t
    }
}