The SIAE and SCF licenses take various parameters into consideration, including: the size of the space where the music is played, the number of speakers (for example inside a shop), the number of seats in a theater and etc. If you use “commercial” music it is necessary to request these licenses from both bodies to be able to regularly provide sound for your venue or commercial activity, thus the costs easily double.
The use of Rehegoo music does not require licenses from SIAE and SCF, but only the Rehegoo license, which entirely covers the rights for in-store distribution.