List of membranophones by Hornbostel–Sachs number
The Hornbostel-Sachs system of musical instrument classification groups all instruments in which sound is produced primarily through a vibrating membrane. This includes all drums. Membranophones (2). Struck membranophones (21). Struck drums - instruments which have a struck membrane. This includes most types of drum, such as the timpani and snare drum. Directly struck membranophones (211). Instruments in which the membrane is struck directly, such as through bare hands, beaters or keyboards 211.1 Instruments in which the body of the drum is dish- or bowl-shaped (kettle drums) 211.11 Single instruments 211.12 Sets of  instruments 211.2 Instruments in which the body is tubular (tubular drums) 211.21 Instruments in which the body has the same diameter at the middle and end (cylindrical drums) 211.211 Instruments which have only one usable membrane 211.211.1 Instruments in which the end without a membrane is open 211.211.2 Instruments in which the end without a membrane is closed 211.212 Instruments which have two usable membranes 211.212.1 Single instruments 211.212.2 Sets of instruments 211.22 Instruments in which the body is barrel-shaped (barrel drums) 211.221 Instruments which have only one usable membrane 211.221.1 Instruments in which the end without a membrane  is open 211.221.2 Instruments in which the end without a membrane is closed 211.222 Instruments which have two usable membranes 211.222.1 Single instruments 211.222.2 Sets of instruments 211.23 Instruments in which the body is double-conical 211.231 Instruments which have only one usable membrane 211.231.1 Instruments in which the end without a membrane is open 211.231.2 Instruments in which the end without a membrane is closed 211.232 Instruments which have two usable membranes 211.232.1 Single instruments 211.232.2 Sets of instruments 211.24 Instruments in which the body is hourglass-shaped 211.241 Instruments which have only one usable membrane 211.241.1 Instruments in  which the end without a membrane is open 211.241.2 Instruments in which the end without a membrane is closed 211.242 Instruments which have two usable membranes 211.242.1 Single instruments 211.242.2 Sets of instruments 211.25 Instruments in which the body is conical-shaped (conical drums) 211.251 Instruments which have only one usable membrane 211.251.1 Instruments in which the end without a membrane is open 211.251.2 Instruments in which the end without a membrane is closed 211.252 Instruments which have two usable membranes 211.252.1 Single instruments 211.252.2 Sets of instruments 211.26 Instruments in which the body is goblet-shaped (goblet drums) 211.261  Instruments which have only one usable membrane 211.261.1 Instruments in which the end without a membrane is open 211.261.2 Instruments in which the end without a membrane is closed 211.262 Instruments which have two usable membranes 211.262.1 Single instruments 211.262.2 Sets of instruments 211.3 Instruments in which the body depth is not greater than the radius of the membrane (frame drums) 211.31 Instruments which do not have a handle 211.311 Instruments which have only one usable membrane 211.312 Instruments which have two usable membranes 211.32 Instruments which have a handle 211.321 Instruments which have only one usable membrane 211.322 Instruments  which have two usable membranes Shaken membranophones (212). Instruments which are shaken, the membrane being vibrated by objects inside the drum (rattle drums) Plucked membranophones (22). Instruments with a string attached to the membrane, so that when the string is plucked, the membrane vibrates (plucked drums) Some commentators believe that instruments in this class ought instead to be regarded as chordophones (see below). Friction membranophones (23). Instruments in which the membrane vibrates as a result of friction. With friction drums, the sound is produced rubbing, rather than striking. Friction drums with stick (231). Instruments in which the membrane is vibrated  from a stick that is rubbed or used to rub the membrane 231.1 Instruments in which the stick is inserted in a hole in the membrane 231.11 Instruments in which the stick can not be moved and is subject to rubbing, causing friction on the membrane 231.12 Instruments in which the stick is semi-movable, and can be used to rub the membrane 231.13 Instruments in which the stick is freely movable, and is used to rub the membrane 231.2 Instruments in which the stick is tied upright to the membrane Friction drum with cord (232). Instruments in which a  cord, attached to the membrane, is rubbed 232.1 Instruments in which the drum is held stationary while playing 232.11 Instruments which have only one usable membrane 232.12 Instruments which have two usable membranes 232.2 Instruments in which the drum is twirled by a cord, which rubs in a notch on the stick held by the player Hand friction drums (233). Instruments in which the membrane is rubbed by hand Singing membranes (kazoos) (24). This group includes kazoos, instruments which do not produce sound of their own, but modify other sounds by way of a vibrating membrane. Free kazoos (241). Instruments  in which the membrane is vibrated by an unbroken column of wind, without a chamber Tube or vessel kazoos (242). Instruments in which the membrane is placed in a box, tube or other container Unclassified membranophones (25). These instruments may be classified with a suffix, depending on how the membrane is attached to the body: