======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '151'
                                          'artist'  'Jim Croce'
                                     'text_people'  ''
                                         'release'  'Time In A Bottle (His Greatest Hits)'
                                           'title'  "I'll Have To Say I Love You In A Song"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
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 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'classic rock', '70s', 'folk', 'singer songwriter']"
                                     'discogstags'  "['folk, world, & country', 'soft rock', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '18'
                                            'date'  '1994'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter;rock-cppex;ifs-songwriter-folk;ifs-songwriter-rock;set-pl-billboard'
                                             'bpm'  '134.6'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Time In A Bottle (His Greatest Hits)'
'TBPM' (BPM (beats per minute))                     '134.6'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter',
 'rock-cppex',
 'ifs-songwriter-folk',
 'ifs-songwriter-rock',
 'set-pl-billboard']
'TDRC' (Recording time)                             '1994'
'TIT2' (Title/songname/content description)         "I'll Have To Say I Love You In A Song"
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Jim Croce'
'TPE2' (Band/orchestra/accompaniment)               'Jim Croce'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '4/18'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['folk, world, & country', 'soft rock', 'folk']
'TXXX:lastfmtags'                                   ['rock', 'classic rock', '70s', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.62 dB'
'TXXX:replaygain_track_peak'                        '0.632048'

========================== row from database ==========================
                                              'id'  1514141
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Jim Croce - his greatest hits/04 I_ll have to say I love you....mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  151
                                           'genre'  ifs-songwriter;rock-cppex;ifs-songwriter-folk;ifs-songwriter-rock;set-pl-billboard
                                        'filesize'  3644763
                                           'mtime'  1636401275
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos his greatest hits 04 I_ll have to say love you... ifs songwriter;rock cppex;ifs songwriter folk;ifs songwriter rock;set pl billboard
                                      'tag_artist'  Jim Croce
                                     'tag_release'  Time In A Bottle (His Greatest Hits)
                                       'tag_title'  I'll Have To Say I Love You In A Song
                                             'bpm'  134.6
                                    'search_title'  'a':11 'have':4 'i':1,7 'ill':3 'in':10 'll':2 'love':8 'say':6 'song':12 'to':5 'you':9
                                   'search_artist'  'croce':2 'jim':1
                                  'search_release'  'a':3 'bottle':4 'greatest':7 'his':5,6 'hits':8,9 'in':2 'time':1
                                     'search_rest'  '00singer':1 'billboard':33 'cppex':20,22 'eos':3 'folk':24,26 'greatest':5 'have':9 'his':4 'hits':6 'i':7 'ifs':15,21,23,25,27 'll':8 'love':12 'pl':32 'rock':17,19,28,30 'say':11 'set':29,31 'songwriter':2,16,18 'to':10 'you':13,14
                                    'search_combo'  '00singer':24 'a':11A,17C 'billboard':56 'bottle':18C 'cppex':43,45 'croce':14B 'eos':26 'folk':47,49 'greatest':21C,28 'have':4A,32 'his':19C,20C,27 'hits':22C,23C,29 'i':1A,7A,30 'ifs':38,44,46,48,50 'ill':3A 'in':10A,16C 'jim':13B 'll':2A,31 'love':8A,35 'pl':55 'rock':40,42,51,53 'say':6A,34 'set':52,54 'song':12A 'songwriter':25,39,41 'time':15C 'to':5A,33 'you':9A,36,37
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'classic rock', '70s', 'folk', 'singer songwriter']
                                        'tag_date'  1994
                                     'discogstags'  ['folk, world, & country', 'soft rock', 'folk']

============================== file details ==============================
                                           'mtime'  1636401275.2155375  (2021-11-08 20:54:35)
                             'size'  3644763