Uses coefficients in normalized form, i.e. a1, a2, b0, b1, b2 as described in https://en.wikipedia.org/wiki/Digital_biquad_filter#Transposed_direct_forms (transposed direct form 2.)
These are not suitable for coefficient interpolation, so for a synth with sweepable filters you would use something else, e.g. a state-variable-filter.
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6.99763e-13 1.03797e-11 7.72148e-11 3.87467e-10 1.48739e-09 4.69075e-09 1.27268e-08 3.06719e-08 6.71982e-08 1.36161e-07 2.58538e-07 4.64733e-07 7.97227e-07 1.31359e-06 2.08982e-06 3.22402e-06 4.84033e-06 7.09317e-06 1.01717e-05 1.43046e-05 1.97647e-05 2.68741e-05 3.60094e-05 4.76068e-05 6.21671e-05 8.0261e-05 0.000102535 0.000129714 0.00016261 0.000202123 0.000249251 0.000305087 0.000370828 0.000447781 0.000537359 0.000641092 0.000760626 0.000897725 0.00105428 0.00123229 0.0014339 0.00166136 0.00191707 0.00220352 0.00252335 0.00287933 0.00327434 0.00371137 0.00419356 0.00472413 0.00530643 0.00594392 0.00664016 0.00739881 0.00822362 0.00911844 0.0100872 0.0111339 0.0122626 0.0134774 0.0147825 0.0161822 0.0176808 0.0192825 0.0209916 0.0228126 0.0247498 0.0268075 0.02899 0.0313017 0.0337468 0.0363296 0.0390543 0.041925 0.0449457 0.0481205 0.0514532 0.0549476 0.0586074 0.0624361 0.0664372 0.0706141 0.0749698 0.0795073 0.0842296 0.0891393 0.0942389 0.0995307 0.105017 0.110699 0.11658 0.12266 0.12894 0.135423 0.142108 0.148997 0.15609 0.163386 0.170886 0.17859 0.186496 0.194604 0.202913 0.211422 0.220129 0.229032 0.238128 0.247416 0.256893 0.266557 0.276403 0.286428 0.29663 0.307003 0.317545 0.32825 0.339114 0.350133 0.361301 0.372612 0.384063 0.395646 0.407356 0.419188 0.431134 0.443189 0.455346 0.467598 0.479939 0.492361 0.504858 0.517422 0.530045 0.542721 0.555441 0.568198 0.580985 0.593794 0.606616 0.619444 0.63227 0.645086 0.657883 0.670655 0.683393 0.69609 0.708736 0.721324 0.733847 0.746297 0.758666 0.770946 0.783129 0.795209 0.807177 0.819027 0.830752 0.842344 0.853796 0.865102 0.876255 0.887248 0.898076 0.908733 0.919211 0.929507 0.939613 0.949525 0.959238 0.968747 0.978046 0.987132 0.996 1.00465 1.01307 1.02126 1.02922 1.03694 1.04443 1.05167 1.05867 1.06542 1.07193 1.07819 1.0842 1.08995 1.09546 1.10071 1.10571 1.11045 1.11494 1.11918 1.12317 1.1269 1.13038 1.13362 1.13661 1.13935 1.14185 1.1441 1.14612 1.1479 1.14945 1.15076 1.15185 1.15272 1.15336 1.15379 1.15401 1.15402 1.15382 1.15342 1.15283 1.15205 1.15108 1.14994 1.14861 1.14712 1.14546 1.14364 1.14167 1.13955 1.13728 1.13488 1.13235 1.12969 1.12691 1.12401 1.12101 1.11791 1.11471 1.11142 1.10805 1.1046 1.10107 1.09748 1.09383 1.09013 1.08637 1.08258 1.07874 1.07488 1.07099 1.06708 1.06315 1.05922 1.05528 1.05134 1.04741 1.04349 1.03958 1.0357 1.03184 1.02802 1.02422 1.02047 1.01676 1.0131 1.00949 1.00594 1.00244 0.99901 0.995643 0.992345 0.989119 0.985969 0.982897 0.979905 0.976997 0.974175 0.97144 0.968795 0.966242 0.963782 0.961417 0.959148 0.956978 0.954906 0.952934 0.951063 0.949294 0.947626 0.94606 0.944598 0.943238 0.94198 0.940825 0.939773 0.938822 0.937973 0.937224 0.936575 0.936025 0.935573 0.935218 0.934958 0.934793 0.93472 0.934738 0.934846 0.935042 0.935324 0.935689 0.936137 0.936665 0.937271 0.937953 0.938708 0.939534 0.940429 0.94139 0.942415 0.943502 0.944647 0.945849 0.947104 0.94841 0.949764 0.951164 0.952607 0.95409 0.95561 0.957165 0.958752 0.960369 0.962011 0.963678 0.965366 0.967072 0.968795 0.97053 0.972276 0.97403 0.97579 0.977552 0.979315 0.981077 0.982834 0.984584 0.986326 0.988056 0.989773 0.991475 0.993159 0.994824 0.996467 0.998087 0.999682 1.00125 1.00279 1.0043 1.00578 1.00722 1.00863 1.01 1.01134 1.01264 1.0139 1.01511 1.01629 1.01742 1.01851 1.01956 1.02056 1.02152 1.02243 1.02329 1.02411 1.02488 1.0256 1.02627 1.0269 1.02748 1.02801 1.0285 1.02893 1.02932 1.02966 1.02996 1.03021 1.03041 1.03057 1.03068 1.03075 1.03077 1.03075 1.03069 1.03059 1.03045 1.03027 1.03005 1.02979 1.02949 1.02916 1.02879 1.02839 1.02796 1.0275 1.027 1.02648 1.02593 1.02535 1.02475 1.02412 1.02347 1.0228 1.02211 1.0214 1.02067 1.01992 1.01916 1.01839 1.0176 1.0168 1.016 1.01518 1.01436 1.01352 1.01269 1.01185 1.01101 1.01017 1.00932 1.00848 1.00764 1.0068 1.00597 1.00514 1.00432 1.00351 1.00271 1.00191 1.00113 1.00035 0.999592 0.998844 0.99811 0.99739 0.996686 0.995997 0.995326 0.994672 0.994035 0.993418 0.992819 0.99224 0.991682 0.991143 0.990626 0.99013 0.989655 0.989203 0.988773 0.988365 0.987979 0.987617 0.987277 0.98696 0.986666 0.986395 0.986147 0.985923 0.985721 0.985542 0.985385 0.985251 0.98514 0.98505 0.984983 0.984937 0.984912 0.984909 0.984926 0.984963 0.98502 0.985097 0.985193 0.985308 0.98544 0.985591 0.985758 0.985942 0.986143 0.986358 0.986589 0.986835 0.987094 0.987367 0.987653 0.98795 0.988259 0.988579 0.98891 0.98925 0.989599 0.989956 0.990322 0.990694 0.991073 0.991458