If you have not ever touched a Spectrum,... Go away from this blog NOW! LOL.
FUSE is another emulator that I always used to play spectrum, but today we will give an opportunity to Unreal Speccy Portable. Why?
First because it supports Z80 128K (Pentagon) AY / YM, Beeper, Beta Disk, Tape, Kempston Joystick / Mouse, Snapshots, Replays.
The supported file formats are: sna, z80, rzx, tap, tzx, csw, trd, scl, fdi, zip
You can play on any platform: Windows / Linux / Mac / Symbian / WinMobile / Dingoo A320/Android/PSP/Raspberry Pi ...
I do not say more. You have the links below. Just unzip, run the file and... play!
Link: Readme Raspberry Pi