| X BRASS | XANVEL | XenoKeyz |
| X JAPAN | xarva | Xenon キセノン |
| X Shampee エックス・しゃんぺ〜 | Xat0li | Xenon Ishikawa ゼノン石川 |
| X-TREME HARD | Xavi BCN | Xenon-P キセノンP |
| x1-1+1 ×1−1＋1 | Xavier Boyer | xenothium |
| X10 | Xavier Collet | XeoN |
| X68K | Xavier Dang | Xephia |
| xac | Xavier Thiry | Xeria |
| XÄCKSECKS | XAX | Xettho |
| Xacla | XAXX0N 4AD | Xeudo Code |
| Xacs Ishikawa Xacs石川 | XBee | XFLAG Sound Team XFLAGサウンドチーム |
| Xacs.I | Xceon | XH |
| XAI | Xeami 世阿弥 | Xi |
| xaimus | XEBEC | xi |
| xaki | Xeductive | Xi |
| Xakyo | Xelfery | xi underground |
| Xale Slusser | XELIK | xi-on 彩音 ～xi-on～ |
| Xanadu Rockalight Orchestra | xelloscope | xi-onP 彩音P |
| Xander Cruise | Xeno | xia |
| Xanotch | xeno-gramophone | Xiang & Yuan |
