I'm sorry if you are having trouble here. Let me try and help you out here. There could be a few reasons for this problem:
1. You may have exported the SID player header format instead of the PRG format on to your D64. You can use SIDPlay/W to export your SID tune as a C64 data file (DAT/PRG).
2. Although a lot of tunes work in Tape Master Pro, some music players use zeropages below $ee which interferes with the tape loader system. As it uses zero pages below that area. If your tune is Goat Tracker, you can easily set the Zeropage address to $fe-$ff (That's the range I usually use for my tunes). Not all music players are compatible with this tape loader, unless all zero pages have been altered manually to work with the loader in a machine code monitor.
3. The size of your music file could be too large for the loader system. The range should be $1000-$1fff. Since the first segment of game data loads at $2000.
4. You may have tried to play a tune that originally loaded at a different load address and may not have been properly relocated to $1000 using SIDReloc or any other compatible music relocators.