Web API - Searching by Artist Genre and release date showing limited results

[dusktilldawnonline]

Plan

Premium

Country

US

My Question or Issue

I have recently created a Spotify Web API that searches tracks based on artist genre and also track release date. However I have a feeling that it’s not collating all tracks within the date range.

For example, when searching by the genre “house” from February 1st until March 1st, the results only contain 26 tracks.

Is Artist genre attached to all tracks or just some? Any input would be much appreciated as I feel like I’ve got a bit stuck figuring it out.