using System;
using System.Collections.Generic;

        public static double getMIDIFreq(int note)
        {
            //structure:  MIDI note value, frequency
            Dictionary<int, double> noteValues = new Dictionary<int, double>()
            {
                {0, 8.1757989156},
                {1, 8.6619572180},
                {2, 9.1770239974},
                {3, 10.3008611535},
                {4, 10.3008611535},
                {5, 10.9133822323},
                {6, 11.5623257097},
                {7, 12.2498573744},
                {8, 12.9782717994},
                {9, 13.7500000000},
                {10, 14.5676175474},
                {11, 15.4338531643},
                {12, 16.3515978313},
                {13, 17.3239144361},
                {14, 18.3540479948},
                {15, 19.4454364826},
                {16, 20.6017223071},
                {17, 21.8267644646},
                {18, 23.1246514195},
                {19, 24.4997147489},
                {20, 25.9565435987},
                {21, 27.5000000000},
                {22, 29.1352350949},
                {23, 30.8677063285},
                {24, 32.7031956626 },
                {25, 34.6478288721},
                {26, 36.7080959897},
                {27, 38.8908729653},
                {28, 41.2034446141},
                {29, 43.6535289291},
                {30, 46.2493028390},
                {31, 48.9994294977},
                {32, 51.9130871975},
                {33, 55.0000000000},
                {34, 58.2704701898},
                {35, 61.7354126570},
                {36, 65.4063913251},
                {37, 69.2956577442},
                {38, 73.4161919794},
                {39, 77.7817459305},
                {40, 82.4068892282},
                {41, 87.3070578583},
                {42, 92.4986056779},
                {43, 97.9988589954},
                {44, 103.8261743950},
                {45, 110.0000000000},
                {46, 116.5409403795},
                {47, 123.4708253140},
                {48, 130.8127826503},
                {49, 138.5913154884},
                {50, 146.8323839587},
                {51, 155.5634918610},
                {52, 164.8137784564},
                {53, 174.6141157165},
                {54, 184.9972113558},
                {55, 195.9977179909},
                {56, 207.6523487900},
                {57, 220.0000000000},
                {58, 233.0818807590},
                {59, 246.9416506281},
                {60, 261.6255653006},
                {61, 277.1826309769},
                {62, 293.6647679174},
                {63, 311.1269837221},
                {64, 329.6275569129},
                {65, 349.2282314330},
                {66, 369.9944227116},
                {67, 391.9954359817},
                {68, 415.3046975799},
                {69, 440.0000000000},
                {70, 466.1637615181},
                {71, 493.8833012561},
                {72, 523.2511306012},
                {73, 554.3652619537},
                {74, 587.3295358348},
                {75, 622.2539674442},
                {76, 659.2551138257},
                {77, 698.4564628660},
                {78, 739.9888454233},
                {79, 783.9908719635},
                {80, 830.6093951599},
                {81, 880.0000000000},
                {82, 932.3275230362},
                {83, 987.7666025122},
                {84, 1046.5022612024},
                {85, 1108.7305239075},
                {86, 1174.6590716696},
                {87, 1244.5079348883},
                {88, 1318.5102276515},
                {89, 1396.9129257320},
                {90, 1479.9776908465},
                {91, 1567.9817439270},
                {92, 1661.2187903198},
                {93, 1760.0000000000},
                {94, 1864.6550460724},
                {95, 1975.5332050245},
                {96, 2093.0045224048},
                {97, 2217.4610478150},
                {98, 2349.3181433393},
                {99, 2489.0158697766},
                {100, 2637.0204553030},
                {101, 2793.8258514640},
                {102, 2959.9553816931},
                {103, 3135.9634878540},
                {104, 3322.4375806396},
                {105, 3520.0000000000},
                {106, 3729.3100921447},
                {107, 3951.0664100490},
                {108, 4186.0090448096},
                {109, 4434.9220956300},
                {110, 4698.6362866785},
                {111, 4978.0317395533},
                {112, 5274.0409106059},
                {113, 5587.6517029281},
                {114, 5919.9107633862},
                {115, 5919.9107633862},
                {116, 6644.8751612791},
                {117, 7040.0000000000},
                {118, 7458.6201842894},
                {119, 7902.1328200980},
                {120, 8372.0180896192},
                {121, 8869.8441912599},
                {122, 9397.2725733570},
                {123, 9956.0634791066},
                {124, 10548.0818212118},
                {125, 11175.3034058561},
                {126, 11839.8215267723},
                {127, 12543.8539514160}
            };

            double result;
            noteValues.TryGetValue(note, out result);
            return result;

        }