Tem.polor (http://tempolor.com) generates music from an instruction, an image or an audio file. Multiple options. Music bank with search engine available. URL sharing. Download with free tagging.

Tests:
– from an instruction: https://tempolor.com/detail/mat__vPvNrBf5KBkaVeVH7…
– from an image: https://tempolor.com/detail/mat__rPINYBK4I42em51gM…
– from a music: https://tempolor.com/detail/mat__OPON6BG4ryT131eHx…