sentences:  Later models included the MicroPipes, which are a headphones-only electronic practice chanter, and the MidiPipes featuring realistic wavetable sound and MIDI output capability.Later commercial developments included the work of Anders Fagerström, who in 1991 manufacturing a Scottish Highland practice chanter emulator, and later developed a "full" set electronic pipes emulation.Fagerstrom also produces emulators of the Galician bagpipe and Swedish säckpipa.