smaller Text at CueVoice

Hello, how can I get a smaller fontsize for text under a CueVoice? I tried \font-size = #-2 and other things, but it did not work. Cheers! Alexander << \new CueVoice = "Hirte" { \relative c'' { \autoBeamOff \stemUp s4 s8 a16 a16 d8 d8 r16 d16 d16 e16 |%T1

chord

Hello, how do I notate a Double stop (German: Doppelgriff), where one note has an other duration (see image). Thanks! Alexander