Soon an echo {start_echo}with chords: [C]cool [A]isn't it?{end_echo}

Second example {start_echo} surrounded with spaces {end_echo} continuing

Third example {start_echo} on{end_echo}
{start_echo}multiple lines ! {end_echo} continuing

{start_echo}Fourth example starting line {end_echo} continuing

Fifth example at the {start_echo}end{end_echo}

{start_echo}Sixth example: only me!{end_echo}

{soc}
{start_echo}Seventh example in a chorus{end_echo}
{eoc}

{sob}
And in a {start_echo}bridge{end_echo}
{eob}