Can be directly transferred into your mouser cart by copying & pasting the text below into the mouser part list import tool (you may need to log in at mouser before the tool is available):
https://www.mouser.com/tools/part-list-import.aspx

80-C1206C104M5R|71
512-FDLL4148|68
583-1N5818-T|1
595-SN74HC165D|2
595-SN74HC595DR|1
538-22-05-7028|1
571-7-215079-8|2
571-12150790|2
660-MF1/4DCT52R2200F|2
652-CR1206JW-103ELF|18
495-TSR2-2450|1

These parts are not required for a normal build - in general: don't buy them! They would go to the greyed-out locations specified as DNF ("do not fit") in the BOM above. If you want them anyways, e.g. for a special usecase, you can also copy & paste them into your mouser cart:

963-TMK316BJ106KL-T|2
583-BAT54S|2

You can manually add these to your cart using the links below. If you are buying a midiphy essential kit, these should be included already. If you are buying plain PCBs, these are necessary to complete your build.

^* Disclaimer: although we have taken the best care possible, we cannot guarantee 100% accuracy and we cannot be held liable for erroneous orders when using this tool, including (but not limited to) incorrect quantities and/or types of components ordered through midiphy or other suppliers.