1. Guitar Intonation

2. Introduction Intonation happens AFTER Set Up. Intonation happens AFTER Set Up. Intonation refers to the instrument being in tune along the fretboard. or simply stated, getting the guitar to play in tune with itself. Intonation refers to the instrument being in tune along the fretboard. or simply stated, getting the guitar to play in tune with itself. Intonation is an iterative process Intonation is an iterative process Open tune the guitar Open tune the guitar Measure the frequency of each string and adjust string length accordingly. Measure the frequency of each string and adjust string length accordingly. Check intonation by playing up and down the fret board. Check intonation by playing up and down the fret board.

3. Tune open strings Standard Tuning big to little… E, A, D, g, b, e Standard Tuning big to little… E, A, D, g, b, e

4. Intonation Getting the guitar to play in tune with itself Should be one octave from open string to 12 th fret

5. Intonation Use Scope software 12 th fret to bridge saddle Sharp = string too short, turn CW to lengthen Flat = string too long, turn CCW to shorten

6. Intonation Intonate after tuning open Intonate after tuning open Detune string before moving saddle! Detune string before moving saddle!

8. Intonation Any time you move the bridge saddle, the open string must be retuned Any time you move the bridge saddle, the open string must be retuned Then re-check the 12 th fret to see if it is an octave higher, or flat, or sharp. Then re-check the 12 th fret to see if it is an octave higher, or flat, or sharp. Repeat Repeat

9. Intonation Guitar neck will change shape with seasons Guitar neck will change shape with seasons Guitar will “settle in” over the next 3-6 months Guitar will “settle in” over the next 3-6 months Adjustments will be necessary Adjustments will be necessary

10. Scope software link free http://www.zeitnitz.de/Christian/scope_en

11. Scope software Tune the guitar, open strings, using SCOPE software Tune the guitar, open strings, using SCOPE software E - 82Hz E - 82Hz A - 110Hz A - 110Hz D - 147Hz D - 147Hz g - 196Hz g - 196Hz b - 247Hz b - 247Hz e - 330 Hz e - 330 Hz

12. Scope software

13. Scope Choose Frequency Analysis display no peak hold

14. Scope Set Zoom slider to 20 and right-hand scroll all the way to the left to see frequencies in the range of the guitar

15. Scope Set Band pass frequency filter to isolate desired frequencies, otherwise you will see many harmonic overtones! Adjust cut-offs for each string and octave

16. Review 1. 1. Intonation happens AFTER Set-Up 2. 2. Open tune strings EADgbe 3. 3. Measure frequency of strings and adjust string length accordingly 4. 4. Any time saddles are moved, retune 5. 5. Repeat steps 4 & 5 as needed 6. 6. Check intonation by playing up and down the fret board. Let’s rock!!

17. Congratulations This concludes guitar intonation dhunt@swell.k12.in.us