Thanks for answers, friends! I don't have ruby installed, so I try Mojca solution. It works perfectly (thanks!), except I need to wrap the lyrics into the 'lines' envinroment. To achieve this, I need to replace \setupwhitespace with \setupinterlinespace and adjust raisebox amount. \starttext \def\Ch#1{% \strut\hbox to 0pt{\raisebox{0.45\baselineskip}\hbox{\bf#1}\hss}} \setupinterlinespace[big] \startlines \Ch{E}Cvet dišeč z \Ch{H7}jutrom se od\Ch{cis}pre, \Ch{A}sonce od\Ch{E}pira o\Ch{H}či. \Ch{E}Polje z vetrom v \Ch{H7}plesu ziblje \Ch{cis}se. Gos\Ch{E}pod, pov\Ch{H}sod vidim \Ch{E}Te. \stoplines \stoptext What do you mean talking about optimization? ) Regards, Vyatcheslav