Note, that by this table middle C (60) is C3, not C4 as per ISO system standardized by Acoustical Society of America This conversion table doesn't apply to MIDI note lists of the sort contained in the 'MIDI Filter' module. For those a simple '10/127 x note number' formula works. MIDI | VOLTS NOTE | | 000 = -0.75 001 = -0.667 002 = -0.583 003 = -0.5 004 = -0.417 005 = -0.333 006 = -0.25 007 = -0.167 008 = -0.083 009 = 0 010 = 0.083 011 = 0.167 012 = 0.25 013 = 0.333 014 = 0.417 015 = 0.5 016 = 0.583 017 = 0.667 018 = 0.75 019 = 0.833 020 = 0.917 021 = 1 022 = 1.08 023 = 1.17 024 = 1.25 025 = 1.33 026 = 1.42 027 = 1.5 028 = 1.58 029 = 1.67 030 = 1.75 031 = 1.83 032 = 1.92 033 = 2 034 = 2.08 035 = 2.17 036 = 2.25 037 = 2.33 038 = 2.42 039 = 2.5 040 = 2.58 041 = 2.67 042 = 2.75 043 = 2.83 044 = 2.92 045 = 3 046 = 3.08 047 = 3.17 048 = 3.25 049 = 3.33 050 = 3.42 051 = 3.5 052 = 3.58 053 = 3.67 054 = 3.75 055 = 3.83 056 = 3.92 057 = 4 058 = 4.08 059 = 4.17 060 = 4.25 061 = 4.33 062 = 4.42 063 = 4.5 064 = 4.58 065 = 4.67 066 = 4.75 067 = 4.83 068 = 4.92 069 = 5 070 = 5.08 071 = 5.17 072 = 5.25 073 = 5.33 074 = 5.42 075 = 5.5 076 = 5.58 077 = 5.67 078 = 5.75 079 = 5.83 080 = 5.92 081 = 6 082 = 6.08 083 = 6.17 084 = 6.25 085 = 6.33 086 = 6.42 087 = 6.5 088 = 6.58 089 = 6.67 090 = 6.75 091 = 6.83 092 = 6.92 093 = 7 094 = 7.08 095 = 7.17 096 = 7.25 097 = 7.33 098 = 7.42 099 = 7.5 100 = 7.58 101 = 7.67 102 = 7.75 103 = 7.83 104 = 7.92 105 = 8 106 = 8.08 107 = 8.17 108 = 8.25 109 = 8.33 110 = 8.42 111 = 8.5 112 = 8.58 113 = 8.67 114 = 8.75 115 = 8.83 116 = 8.92 117 = 9 118 = 9.08 119 = 9.17 120 = 9.25 121 = 9.33 122 = 9.42 123 = 9.5 124 = 9.58 125 = 9.67 126 = 9.75 127 = 9.83 the volts values can be fed to 'Trigger To MIDI' and 'SampleOscillator2' modules at 'Pitch' pin for example the values can be calculated as well, but it's not so straightforward and due to deviations product requires constant manual adjustment, the table saves you this tedious process, it's accurate and verified Bayan