The sheet music I publish here (as in: the arrangements themselves) are licensed under the Creative Commons Attribution 4.0 International License.
This means you can freely download, share, perform, remix, or build on my arrangements however you like, as far as I am concerned. However, when redistributing my work in any form, you must credit me as the creator, and also include a reference to the license. Thank you for complying with these conditions, and making responsible use out of this creative work.
Please beware that the CC BY 4.0 license only applies on the arrangements themselves (which are remixes of the original work under the conditions of "fair use"). Still, some of the original work adapted here may be licensed under different terms, which you may need to check as well. For example, to perform certain songs live in public, you may need to obtain additional permissions (e.g., from GEMA in Germany). When in doubt, ask your local authority on live music performances.
If you have any questions, feel free to contact me.