Is there a best practise for 3 voices one hand piano?

[info]

Hi-
here's what I've got but I'm not sure it's best practise. Thanks for 
feedback in advance
Jay
\version "2.16.1"
\header {
  title = "19 Dec for left hand #2"
  composer = "Jay Hamilton"
    copyright = \markup { \tiny \override #'(baseline-skip . 0.5)
\center-column
        {  "CC lic 2.5 some rights reserved Jay Hamilton 2013"
    "see http://creativecommons.org/licenses/by-nd/2.5/";
               } }
               }
#(ly:set-option 'delete-intermediate-files #t)
#(set-default-paper-size "letter" 'landscape)
 #(set-global-staff-size 22)
% #(set! paper-alist (cons '("my size" . (cons (* 5 in) (* 3 in))) 
paper-alist))
  \paper
 { % #(set-paper-size "my size")
 indent = 30
 short-indent = 15
 right-margin = 30
 top-margin = 15
 bottom-margin = 15
 }

melody = \relative c
{
\clef bass
\key c \major
\time 3/4
\override Staff.TimeSignature #' style = #' ()
\override Score.BarNumber #'break-visibility = #end-of-line-invisible
\override BreathingSign #'font-size = #5
\accidentalStyle "forget"
\set Staff.pedalSustainStyle = #'bracket
<<{\stemDown
\override TieColumn #'tie-configuration =
#'((-9.0 . -1))
  <c, fis>2 ~ c4
  \override TieColumn #'tie-configuration =
#'((-7.0 . -1))
  <e d'>2 ~ e4
  \override TieColumn #'tie-configuration =
#'((-5.0 . -1))
  <gis d'>4 ~ gis2  <bes a'>2.
  <e a c>2.}\\
  {\stemUp c8 a bes g a fis bes a c bes d e f ges f es d
  c fis e fis d e fis
   }
  >>
 \bar "|."
}

\score {
\new Staff \melody
\layout {
\context {
\Staff \RemoveEmptyStaves
}
 }
\midi { }
}