Guitar-Online Tuner - Version 2.0 This guitar tuner allows standard and open* tunings.The program shows the name of the note, together with its place on the stave, and numerical values of pitch/frequency. If the open tunings doesn't fit your needs, you can use the keyboard (in chromatic mode) and choose any other note to tune your guitar.[*] The open-tunings available are:Standard: E-A-D-G-B-EStandard + 1/2 tone: F-Bb-Eb-Ab-C-FStandard - 1/2 tone: Eb-Ab-Db-Gb-Bb-EbStandard - 1 tone: D-G-C-F-A-DStandard + D bass: D-A-D-G-B-ELute: E-A-D-F#-B-DOpen G: D-G-D-G-B-DOpen D: D-A-D-F#-A-DOpen A: E-A-E-A-C#-EOpen E: E-B-E-G#-B-EOpen C: C-G-C-G-C-EC Alternative: C-G-D-G-A-D