Cover
FT026s   5  9 21 26 34
FT027s  16 17 27 41
FT029b  20
MCK      1  2  3  4  6 10 11 12 14 15 18 22 23 24 25 28 32 33 35 36 38 40
S3M2NSF  7  8 19 30 31 37 39
NT2     13 29

Original
FT026s   6 50 60
FT027s   7  9 12 13 14 17 20 21 24 25 30 31 32 33 34 35 37 41 43 46 48 49 51 54 55 57 59 61
FT029b  11
MCK      3 16 19 22 23 26 28 45 52 53
S3M2NSF  1  2  4  5  8 10 15 18 27 29 36 38 39 40 42 44 47 56 58

        Engine                          Author          Cov / Orig
FT026s  FamiTracker 0.2.6 stable        jsr               5 +  3 =   8
FT027s  FamiTracker 0.2.7 stable        jsr               4 + 28 =  32
FT029b  FamiTracker 0.2.9 WIP           jsr               1 +  1 =   2
MCK     MCK / PMCK / PPMCK              various          22 + 10 =  32
S3M2NSF S3M2NSF                         mukunda           7 + 19 =  26
NT2     NerdTracker 2                   bananmos          2 +  0 =   2
        Total                                            41 + 61 = 102