![Wink ;)](./images/smilies/icon_e_wink.gif)
I use the spark amp only in one way, for playing together with backing tracks of my favorite songs.
For this i use also the Anytune app. There i can change the pitch of my favorite backing tracks, so that i not must retune my guitar for each song. I can also make the BT louder or quieter, just as i need it, so that it matches the volume of my preset for this song.
The program remembers these settings for each song. The volume and pitch of each BT is adjusted for every song individually and only once in Anytune.
So you have not to change the setting of the small music button in the right edge of the Spark amp. It can stay all the way up... ever.
Also my iPad volume is ever the same...at full, minus click twice, for the use at my home.
The output button on the amp needs only two positions, 2 o 'clock only for the presets with the real quiet amps and for all other presets it is all the time on 10 o' clock. All other knobs on the amp i don't need, because i play my favorite presets exclusivly over the app.
Once set, it's a very convenient way to play guitar.
Select preset, select backing track and press start, nothing else.