Marie, 3.5 years

Thank you!
We have continued with some new songs recently, also trying a bit more with hands together. Marie enjoys her piano playing, and the music money definitely helps too!
I will post results below, but have one extra question:
Marie hasn't yet got the idea of sustaining a note in one hand while moving with the other. So for example if there is a minim in LH and crotchets in RH, she will usually play the LH twice to fit with quicker RH movement (unless I help her hold down the hand). I can see that this is a coordination issue, doing different things with different hands, but just wondering if there are any exercises or pieces that may help with this?

2nd April:
Guess key - 54pts, 33secs
Bass staff puzzle - 13pts, 1:12
Jingle bells RH - 35/45, 47
Happy birthday RH - 23/25, 28
Hot cross buns LH - 18/22, 12
4th April:
Guess key - 54pts, 29secs
Hot cross buns LH - 22/22, 8 and hands together - 27/37, 57
5th April:
Hot cross buns hands together - 27/37, 47
Jingle bells RH - 65/77, 52
6th April:
Guess key - 61pts, 30secs - 32/37, 35
Hot cross buns together - 29/37, 46
happy brithday RH - 24/25, 30 and LH - 8/12, 42
french song hands together - 38/48, 73
7th April:
Guess key - 61pts 30secs
treble staff puzzle - 18pts, 1:08
hot cross buns together - 32/37, 35
ode to joy hands together - 28/48, 86
jingle bells together - 62/77, 92
8th April:
new years tree together - 29/57, 101
10th April:
hot cross buns together 31/37, 37
11th April:
guess key - 34pts, 18secs
hot cross buns together - 27/37, 44
old macdonald RH - 48/59, 61
13th April:
baa baa black sheep together - 37/44, 59
mary had a little lamb together - 38/63, 106
french song together - 34/48, 56
happy birthday together - 34/37, 61
14th April:
french song together - 31/48, 63
humpty dumpty - 35/43, 69
fir tree LH - 10/26, 75
16th April:
Musette RH - 33/37, 31 and LH - 25/33, 38
jingle bells together - 62/77, 76
guess key 63pts, 29secs
french song together - 46/48, 37
17th April:
Musette RH - 32/37, 39 and LH - 30/33, 35
guess key - 89pts, 51secs
french song together - 44/48, 46
happy birthday together - 34/37, 50
Musette together - 60/70, 99
20th April:
Musette together - 58/70, 101
10 little indians - 33/40, 37

Thank you. Marie is starting now to try holding some notes on while moving the other hand, which is great.
I will record our latest figures below in a moment.
I have another question - when to use the different layouts of the staff, eg numbers 1 to 6? So far we have only used number 1, which she is fine with, but today I played her a more difficult piece to her for listening, and used number 6 (as I find it easier!) - she picked up on this, and was happy to try playing with number 3, which she seemed to enjoy. Should we stick to number 1 for now, or try moving to different layouts?
Thanks

Thank you, that makes sense.

I will try and make a couple more videos this week, but for now here are latest figures. All tunes are hands together now, unless mentioned which hand.

22nd April:
Guess key 80, 51s
Musette 64/70, 74
Jingle Bells 73/77, 90
Happy birthday 34/37, 41
Fir tree 59/68, 93
27th April:
Guess key 83, 1:08
Musette 59/70, 82
Fir tree 48/68, 126
Hot cross buns 24/37, 43
new year tree 49/57, 69
29th April:
Musette 61/70, 70
French song 41/48, 62
Guess key 72, 1:03
Small fir tree 52/68, 111
2nd May:
French song 41/48, 28
Note alphabet 33, 1:39
Musette 60/70, 93
Farmer in dell 33/33, 33
Small fir tree 49/68, 113
Alphabet song 44/48, 38
6th May:
Aplhabet song 39/48, 57
Guess key 78, 1:02
11th May:
Musette 59/70, 92
small fir tree 57/68, 104
12th May:
hot cross buns 35/37, 28
Jingle bells 62/77, 106
Musette 27/34, 42
18th May:
Musette 59/70, 72
Alphabet song 42/48, 72
Baa baa black sheep 36/44, 55
Guess key 86, 48s
Hot cross buns 37/37, 30
20th May:
Old macdonald RH 53/59, 60 and LH 29/39, 104
Jack and Jill 26/31, 125
Jingle bells 67/77, 69
Musette 62/70, 74
hot cross buns 31/37, 31
23rd May:
With staff layout 3
hot cross buns 30/37, 38
musette 64/70, 103
A Hen RH 34/38, 67
24th May:
with layout 3
Fir tree 62/68, 138
A Hen RH 36/38, 49 and LH 22/25, 48
Guess key 90, 40s
Hot cross buns 34/37, 28
25th May:
layout 3
Hen 38/63, 181
Small fir tree 44/68, 137
Ode to joy 39/48, 56
Hot cross buns 33/37, 27
Musette 55/70, 81
Jingle bells 64/77, 108
26th May:
layout 3
A Hen 50/63, 126
Mary had a little lamb 54/63, 81
New years tree 43/57, 82
Positon pattern 1 9/14, 56
Musette 61/70, 98
27th May:
layout 3
Guess key 75, 47s
A Hen 52/63, 132
Ode to joy 47/48, 48
hot cross buns 36/37, 22
Position pattern 1 14/14, 45
Musette 54/70, 93
28th May:
Position patter 1 14/14, 51
Music for 20 fingers 67/79, 155
Old macdonald RH 55/59, 52 and LH 31/39, 52
A Hen 44/63, 118
Musette 61/70, 73
29th May:
This old man 71/92, 145
Musette 53/70, 78
Position pattern 1
Small fir tree 48/68, 106
Old macdonald 69/98, 195
30th May:
Back to layout 1
A Tease 36/48, 112
Tom tom 26/30, 31
A Hen RH 37/38, 38 and LH 20/25, 28
Ode to joy 40/48, 35
Position pattern 1 13/14, 24
Musette 60/70, 58
2nd June:
Position pattern 1 12/14, 27
Happy birthday 32/37, 61
Ode to joy 39/48, 46
A Hen RH 34/38, 34 and LH 23/25, 32
A Tease 40/48, 90