Abstract: EGFxSet contains recordings of all clean tones in a Stratocaster guitar, with augmentations by processing through twelve electric guitar effects. Similar datasets apply effects using software, EGFxSet in contrast uses real guitar effects hardware, making it relevant to develop MIR tools with applications on real music. Annotations include all guitar and effect parameters controlled during our dataset recording. EGFxSet contains 8970 unique, annotated guitar tones, and is published with full open-access rights.