I recorded the sound using a microphone in front of guitar amp and then used some distortion, reverb and small variations to get the final result.
It reminded me of a horn on a big boat entering the harbor 
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This sound was made by resampling a distorted bass few times using few different filters with LFO . I inserted reverb to make it big and real and then send to some other fx.
The sound gives me the picture of a big machine or some futuristic robot making noise in a strange environment or some other big hall.
This sound was made with only two other sounds, one low bass like sound and one high pitched stab sound with three notes. Then mixed with reverb and some other effects to give it another dimension.
When i was designing this sound i was thinking of space, spaceships and universe, hope you can hear and see this in your head too like i did 
A collection of modern jazz tracks with a hint of electronica. Plenty of brass and saxes with electric piano,fretless bass and synths. TRACK 1 –3:55 http://audiojungle.net/item/jazz-electronica-1/129251 ––– TRACK 2 -2:12 http://audiojungle.net/item/prague-spring-jazz-remix/129285 —– TRACK 3 —2:15 http://audiojungle.net/item/jazz-electronica-2/129278
This is a very positive and cheerful track. It features acoustic guitar, drums, bass, piano and rhode piano. I also included two short loops taken out of the song , so that the buyer can rearrange the song in a different way.
Here are tracks included:
1. You And I (2:11)
2. Loop 1 (0:10
3. Loop 2 (0:10)