- Instrument Mode
- Instrument Setting
- Sequencer Mode
- Sequencer Setting
- Edit Wave
- Edit Wave Interpolation
- Edit Wave Add and Remove
- Edit Sequence Frequency
- Edit Sequence Amplitude
- Edit Sequence Duration

**Instrument Setting**

__Multi Touch__: For iPhone 5 is maximum touch number, and for iPad it's 10.

__Scale Selection__:

7 is for major scale[Do Re Mi Fa So Ra Ti Do].

12 for chromatic scale.

5 for pantatonic scale[Ra Do Re Mi So Ra].

5rk is for Ryukyu pentatonic scale[Do Mi Fa So Ti Do].

__Subharmonics and Harmonics__: adds overtones to currently playing sound. If 3 is selected for harmonics and a playing pitch is 120Hz, it adds 240Hz, 360Hz and 480Hz to the original sound. In same case with subharmonics, it adds 60Hz, 40Hz and 30Hz. Weight : A weight to each harmonics is calculated with the folowing formula.

1.0 / (harmonic index+2)^value

If playing pitch is 120Hz, it would be as folowing chart.

Subharmonics | playing pitch | Harmonics | ||||||
---|---|---|---|---|---|---|---|---|

Index | 2 | 1 | 0 | 0 | 1 | 2 | ||

Hz | 30(120x1/4) | 40(120x1/3) | 60(120x1/2) | 120 | 240(120x2) | 360(120x3) | 480(120x4) | |

Weight (multiplied to amplitude) |
2.0 | 1/16 | 1/9 | 1/4 | 1/4 | 1/9 | 1/16 | |

1.0 | 1/4 | 1/3 | 1/2 | 1/2 | 1/3 | 1/4 | ||

0.0 | 1 | 1 | 1 | 1 | 1 | 1 | ||

-1.0 | 4 | 3 | 2 | 2 | 3 | 4 | ||

-2.0 | 16 | 9 | 4 | 4 | 9 | 16 |

**Sequencer Setting**

__Subharmonics and Harmonics__: see details in Instrument Setting section.

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**Edit Wave**You can pick up the number of edit points when you create a new tube, but after that You can not change the number.

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**Edit Wave Interpolation**

__QUADRATIC BEZIER__: Bezier curve with 2 control point.

__CUBIC BEZIER__: Bezier curve with 4 control point.

__QUADRATIC SPRINE__: Regular quadratic spline. The curve at first and last edit point might not be smooth.

__QUADRATIC MERGE__: Calculate quadratic function for each edit point with its before and after edit points, then leanerly add up all values. The curve at first and last edit point is smooth.

__LAGRANGE__:Interpolate with an ((Number Edit point)-1)th-degree equation. The curve at first and last edit point might not be smooth.

__LINEAR__: Simple linear interpolation.

__STEP__: Nearest-neighbor interpolation (also known as proximal interpolation).

__NOISE1__: LINEAR interpolation x random[0.0, 1.0]

__NOISE2__: QUADRATIC MERGE interpolation + (0.2xrandom[-1.0, 1.0])

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**Edit Sequence Duration**

__Fix Minimum Unit Duration__: Fix unit duration. Minimum value is 0.01. Default value is 0.05.

__Fix Total Duration(Time)__: Fix total duration of tube with time input.

__Fix Total Duration(beat and tempo)__: Fix total dutarion of tube with number of beats and tempo. If tempo is 120 and duration of tube is 8 beats long, the duration will be 60/120 * 8 = 4 seconds.

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