Can we have the old electric guitar back?

[Sosasees]

No. The new one is better.

I'd suggest to add a Function, where, while you compose a Sequence, you can choose one Soundfont from any Soundfonts, that OnlineSequencer ever had, preferrably for every Instrument individually.
This Way, everyone who likes the new E-Guitar more, can use it, and everyone, who likes the old one more, can use it instead.

In every Song, that was made before this Function is added, every Instrument should automatically use the Soundfont from the Time, where the Song was created.