Shir haShirim Zutta is very different in nature from Shir haShirim Rabbah. Zutta is a homiletic commentary on the whole text, and does not contain any proems; some verses are treated at length, while others are dismissed very briefly, sometimes only one word being discussed.
In contrast to Shir haShirim Rabbah, Shir haShirim Zutta presents a fundamentally different approach. It functions as an interpretive commentary on the entire work, omitting introductory poems and instead devoting extensive attention to certain verses while briefly touching upon others.