7x7x7

This diagramless cryptic uses both bars and blocks, and takes place on the surface of a cube, shown below unfolded. Entries are clued in bands, and when an entry extends past the edge of the one side, it continues onto the next, or back to the beginning of its band. Clues for each band are given in order, but between entries may be any number of bars or blocks. The beginning location of the first entry in each band is shown.

The four entries in band O are musical acts. Songs from these acts may be found in bands A and K (two each), and the common [B2] shared by these songs may reveal the true nature of this grid.

As an aid to placement, bars and blocks on the interior of each face of the cube have rotational symmetry. This does not extend to edges between faces. As an example: You're shown where the first entry in clue B begins, which allows you to put a bar above that space, which in turn allows you to infer the location of another bar on that face of the cube. (It will go below the cell labelled J.) It does not however allow you to immediately assume another more horizontal bars above that square, as the last entry in band B might extend into those two cells. On the other hand, you can similarly put a horizontal bar above the beginning of the first entry in A, but this bar, being on the edge between two faces, does not let you immediately infer another bar's location. Note that the bar before entry C1 would block any entry from wrapping around from the end of C to the beginning, but bars can't be placed on the border. Finally, also note that any of these bars may turn out to be the edge of a block.

Add/remove horizontal bars with '_', vertical bars with '|', and blocks with the space bar.

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