YOU SAID:

were gonna skate to one song and one song only

INTO JAPANESE

1曲と1曲だけにスケートするつもりだった

BACK INTO ENGLISH

I was going to skate to just one song and one song.

INTO JAPANESE

1曲1曲だけスケートするつもりでした。

BACK INTO ENGLISH

I was just going to skate one song at a time.

INTO JAPANESE

私はちょうど一度に1曲ずつスケートするつもりでした。

BACK INTO ENGLISH

I was just going to skate one song at a time.