"Play music at the party."
Translation:E kani ka pila i ka pāʻina.
After I wrote that, I looked up "kani." Within that definition was the following, which makes me think that using "ho'o" at the beginning indicates that you are making music (causing a sound) by using an instrument , versus just making (playing) music with "kani." Just a guess?
1]. hoʻo.kani. To play a musical instrument or drum; to cause to sound, honk; to crack, as a whip; to ring up on the telephone. See ex., pila 1. Hoʻokani pono, to tune, as a musical instrument. Hoʻokani pihe, to shout, roar, wail, as by a crowd. (PPN tangi.
1 nviSound or noise of any kind; pitch in music; to sound, cry out, ring, peal, jingle, tinkle, toll, whir, resound, reverberate; roar, rumble, crow, resonance; to strike or tick, of a clock, to sing, as birds; voiced. Cf. leokani. [PPN tangi] ke kani ʻana o ka leo the sound or tone of the voice, intonation kani nā pele jingle bells kani ka pila play music kani ʻōkalakala screech Kani ka moa. The rooster crows. kani ā hiaʻā to grieve and moan so sorrowfully that one cannot sleep kani ā ʻuʻina flash of lighting followed immediately by a peal of thunder leo kani sweet or pleasant voice Mākaukau, kī, kani! Ready, aim, fire! kani ka papa waʻa the canoe floor sounds [a poetic expression applied to aged persons just before death, as the dead were sometimes laid in canoes which were placed in burial caves] ʻUmi minuke i koe, kani ka hola ʻewalu. Ten minutes before eight; Lit. ten minutes remaining strikes the hour eight. Ua pūhā kēia lāʻau, ke kani ʻia ala e ka manu. This tree is rotten, [it] is being made to sound by the bird [said of a tree not suitable for a canoe: see ʻelepaio 1].