Can someone explain me the difference of the stated quote

Question

Can someone explain me the difference of the stated quote

on Quants homepage between R3 and Quant?

„R3 brings its ability to deliver complex pioneering projects for regulated markets whilst providing the critical shared ledger capability, via its leading tokenisation platform, Corda, and Digital Currency solution, part of the recently launched R3 Digital Markets product suite. Quant will be enabling programmability and interoperability across different forms of money by delivering the orchestration and API layer to the project with our Overledger platform.“

-What are pioneering projects?
- what is a critical shred ledger Capability? I know what’s a ledger
- what is an orchestration ?

Sounds super similar

Why would R3 need the Quant Token if they offer a shared ledger capability?