======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '185'
                                          'artist'  'Dixie Chicks'
                                     'text_people'  ''
                                         'release'  'Fly'
                                           'title'  "If I Fall You're Going Down Wi"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'bluegrass', 'female vocalists', 'pop', 'folk']"
                                     'discogstags'  "['rock', 'country rock', 'pop rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'loc-namerica-country-pop'
                                             'bpm'  '123.256'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'Fly'
'TBPM' (BPM (beats per minute))                     '123.256'
'TCON' (Content type, a.k.a. Genre)                 'loc-namerica-country-pop'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         "If I Fall You're Going Down Wi"
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dixie Chicks'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'country rock', 'pop rock']
'TXXX:lastfmtags'                                   ['country', 'bluegrass', 'female vocalists', 'pop', 'folk']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.07 dB'
'TXXX:replaygain_track_peak'                        '0.506597'

========================== row from database ==========================
                                              'id'  1516333
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Dixie Chicks/MBZ;#Dixie Chicks;#Fly;#0000-00-00;#02;#If I Fall You_re Going Down With Me.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  185
                                           'genre'  loc-namerica-country-pop
                                        'filesize'  4446705
                                           'mtime'  1621630276
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos MBZ;#Dixie Chicks;#Fly;#0000 00 00;#02;#If You_re With Me loc namerica country pop
                                      'tag_artist'  Dixie Chicks
                                     'tag_release'  Fly
                                       'tag_title'  If I Fall You're Going Down Wi
                                             'bpm'  123.256
                                    'search_title'  'down':8 'fall':3 'going':7 'i':2 'if':1 're':5 'wi':9 'you':4 'youre':6
                                   'search_artist'  'chicks':2 'dixie':1
                                  'search_release'  'fly':1
                                     'search_rest'  '00':14,15,18 '0000':10,13 '00singer':1 '02':16,19 'chicks':8,11 'country':27 'dixie':5,7 'eos':3 'fly':9,12 'if':17,20 'loc':25 'mbz':4,6 'me':24 'namerica':26 'pop':28 're':22 'songwriter':2 'with':23 'you':21
                                    'search_combo'  '00':26,27,30 '0000':22,25 '00singer':13 '02':28,31 'chicks':11B,20,23 'country':39 'dixie':10B,17,19 'down':8A 'eos':15 'fall':3A 'fly':12C,21,24 'going':7A 'i':2A 'if':1A,29,32 'loc':37 'mbz':16,18 'me':36 'namerica':38 'pop':40 're':5A,34 'songwriter':14 'wi':9A 'with':35 'you':4A,33 'youre':6A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['country', 'bluegrass', 'female vocalists', 'pop', 'folk']
                                        'tag_date'  2002
                                     'discogstags'  ['rock', 'country rock', 'pop rock']

============================== file details ==============================
                                           'mtime'  1621630275.6608152  (2021-05-21 22:51:15)
                             'size'  4446705