Like Layell said the longest real cry is a little over 2 seconds. The average length for your cries exceed that.Hi, thanks for the feedback so far. :)
To address a few things:
I understand that the vast majority of cries are short, but these are not foreign to Pokemon and I don't think they should be ruled out entirely; see Exeggutor, Hypno, Jynx, Steelix, Milotic, Wailord, Kricketune, Klinklang, Aurorus, to name a few.
No opinion on this cause idek .-.Echo/Fade Out Cries
These are not foreign to Pokemon either; see Clamperl, Milotic, Wailord, Metagross, Regice, Empoleon, Lumineon, Froslass. There are others but this should give you a general idea.
Yea I could get what you were trying to do with Revenankh, and I liked it but it didn't feel like a Pokemon cry. Those ones you mentioned don't sound distinctly like instruments (with the exception of Kricketot who is weird). It took a couple of listens to Cloyster's to kinda hear it as a fanfare, I don't see how synthesizer sounds count as instrumental sounds in this sense because they are electronic sounds like all the other cries of that era, Togepi and Deoxys I'm not picking up on, and like I said Kricketot is weird. The difference with your cries is I would just go "Drums, Sitar, etc." immediately, this makes those cries sound way too different. It's ok in scarcity or as an exception -- like our friend Kricketot bless his adorable soul -- but for that many cries it sounds very out of place.Cries With Music-Like Effects
Cloyster's cry is a horn fanfare. Parasect, Starmie, and Mewtwo have cries that are arpeggiated synthesizer sounds. Togepi and Deoxys have cries that are of piano keys with slight distortion. Chingling's cry contains a jingle bell and Chimecho's cry is literally a chime. Kricketot's cry is descending high notes on a xylophone, marimba, or similar instrument. And then there's Meloetta.
^ Most of these sounds are not even relevant to the Pokemon. However, I added an Egyptian sitar to Revenankh's cry because it is based on a mummy and this instrument was very popular in ancient Egypt when mummifications were taking place, and so the two are often correlated. The sound of the shaker + drumroll in Malaconda's cry is used to imitate a snake rattle, but you couldn't expect it to sound exactly the same because it has an apple hanging from its tail. I think the music-like effects I used for these cries are much more relevant to the Pokemon than the ones that already exist.