\version "2.14.2"

% Measures definitions, identical for both layout and MIDI,
% but needs to occur twice, because primitives are different in MIDI.
% For primitives see accLayoutDefinitions.ly and accMidiDefinitions.ly 
mc = { \qxc \qsc \qxc \qsc | }
md = { \qxd \qsd \qxd \qsd | }  
mF = { \qxf \qsf \qxf \qsf | }
mg = { \qxg \qsg \qxg \qsg | }
mgs = { \qxgs \qsgs \qxgs \qsgs | }
mds = { \qxds \qsds \qxds \qsds | }

% Lower staff definition, identical for both layout and MIDI,
% but needs to occur twice, because primitives are different in MIDI.
lowerIntro = { \first \qsc \qxc \qsc | \qxgs \qsgs \qxgs \qsgs | \mc \mc }
lowerAa = { \mc \mc \mc \mc   \mF \mF    \mF \mc \mc \mds \mg \mg }
lowerAb = { \mc \mc \mc \mc \mF \mF      \mF \mc \mc \mgs \mc \qxc r4 r2 | }
lowerBa = { \mc \mc \mF \mF     \mc \mc            \mg \mg }
lowerBb = { \mc \mc \mF \mF         \mc \mgs    \mc \qxc r4 r2 | }
lowerCa = { \mc \mc \mc \mc \mF \mF       \mF \mc \mc   \qxc \qsc \qxds \qsds | \mg \mg }
lowerCb = { \mc \mc \mc \mc \mF \mF     \mF \mc \mc    \qxc \qsc \qxgs \qsgs |  \mc \qxc r4 r2 | }

lower = { \lowerIntro \lowerAa \lowerAb \lowerBa \lowerBb \lowerCa \lowerCb }