Holiness of Rosh Chodesh
Question
What is the holiness level of Rosh Chodesh? Seemingly it lies somewhere between an ordinary weekday and Shabbat/Yom Tov. On Shabbat, 39 activities are prohibited and Musaf is recited. On Yom Tov, most of those 39 activities are prohibited and Musaf is recited. On Rosh Chodesh, none of those 39 activities are prohibited, but Musaf is still recited. Where does that place Rosh Chodesh on the holiness scale?