The traditional Yang style tai-chi chuan slow form is commonly referred to as the 'long form' or 108 form. It was originally derived from the Chen style tai-chi 'lao jia yi lu' form and while there is some common names to the postures, it is clearly very different. There are many branches of the Yang style family tree but the most common is that which has been passed down from Yang Cheng-Fu as this one.

Number English
S01P01 Opening of Tai Chi
S01P02 Left Grasp Bird's Tail
S01P03 Grasp Bird's Tail
S01P04 Single Whip
S01P05 Step Up and Raise Hands
S01P06 White Crane Spreads Wings
S01P07 Brush Knee (left)
S01P08 Strum the Pei Pa
S01P09 Brush Knee and Twist Step (left)
S01P10 Brush Knee and Twist Step (right)
S01P11 Brush Knee (left)
S01P12 Strum the Pei Pa
S01P13 Brush Knee and Twist Step (left)
S01P14 Chop with Fist
S01P15 Step Up, Deflect, Parry, Punch
S01P16 Appear to Close Entrance
S01P17 Cross Hands
S02P01 Carry Tiger to Mountain
S02P02 Whip Out Diagonally
S02P03 Fist Under Elbow
S02P04 Go Back to Ward Off Monkey (right)
S02P05 Go Back to Ward Off Monkey (left)
S02P06 Go Back to Ward Off Monkey (right)
S02P07 Diagonal Flying
S02P08 Step Up and Raise Hands
S02P09 White Crane Spreads Wings
S02P10 Brush Knee (left)
S02P11 Push Needle to Sea Bottom
S02P12 Fan Penetrates through the Back
S02P13 Turn and Chop with Fist
S02P14 Step Up, Deflect, Parry, Punch
S02P15 Step Up to Grasp Bird's Tail
S02P16 Single Whip
S02P17 Move Hands Like Clouds (five times)
S02P18 Single Whip
S02P19 High Pat On Horse
S02P20 Separate and Kick (right)
S02P21 Separate and Kick (left)
S02P22 Turn and Kick
S02P23 Brush Knee and Twist Step (left)
S02P24 Brush Knee and Twist Step (right)
S02P25 Step Up and Punch
S02P26 Turn and Chop with Fist
S02P27 Step Up, Deflect, Parry, Punch
S02P28 Right Foot Kick
S02P29 Hit Tiger (left)
S02P30 Hit Tiger (right)
S02P31 Right Foot Kick
S02P32 Strike Ears with Fists
S02P33 Left Foot Kick
S02P34 Turn and Kick
S02P35 Chop with Fist
S02P36 Step Up, Deflect, Parry, Punch
S02P37 Appear to Close Entrance
S02P38 Cross Hands
S03P01 Carry Tiger to Mountain
S03P02 Whip Out Horizontally
S03P03 Parting Wild Horse's Mane (right)
S03P04 Parting Wild Horse's Mane (left)
S03P05 Parting Wild Horse's Mane (right)
S03P06 Parting Wild Horse's Mane (left)
S03P07 Parting Wild Horse's Mane (right)
S03P08 Left Grasp Bird's Tail
S03P09 Step Up to Grasp Bird's Tail
S03P10 Single Whip
S03P11 Fair Lady Works Shuttles (left)
S03P12 Fair Lady Works Shuttles (right)
S03P13 Fair Lady Works Shuttles (left)
S03P14 Fair Lady Works Shuttles (right)
S03P15 Left Grasp Bird's Tail
S03P16 Step Up to Grasp Bird's Tail
S03P17 Single Whip
S03P18 Move Hands Like Clouds (four times)
S03P19 Single Whip
S03P20 Creeping Low Like a Snake
S03P21 Golden Cock Stands on One Leg (left)
S03P22 Golden Cock Stands on One Leg (right)
S03P23 Go Back to Ward Off Monkey (right)
S03P24 Go Back to Ward Off Monkey (left)
S03P25 Flying at a Slant
S03P26 Step Up and Raise Hands
S03P27 White Crane Spreads Wings
S03P28 Brush Knee (left)
S03P29 Push Needle to Sea Bottom
S03P30 Fash through the Back
S03P31 White Snake Turns and Puts Out Tongue
S03P32 Step Up, Deflect, Parry, Punch
S03P33 Step Up to Grasp Bird's Tail
S03P34 Single Whip
S03P35 Move Hands Like Clouds (three times)
S03P36 Single Whip
S03P37 High Pat on Horse
S03P38 Cross Hands to Penetrate
S03P39 Turn and Kick
S03P40 Chop with Fist
S03P41 Brush Knee and Punch
S03P42 Step Up to Grasp Bird's Tail
S03P43 Single Whip
S03P44 Creeping Low Like a Snake
S03P45 Step Up to Seven Stars
S03P46 Retreat to Ride Tiger
S03P47 Turn Around to Sweep Lotus
S03P48 Draw Bow to Shoot Tiger
S03P49 Chop with Fist
S03P50 Step Up, Deflect, Parry, Punch
S03P51 Appear to Close Entrance
S03P52 Cross Hands
S03P53 Closing of Tai Chi