======================== unified (from filesystem) ========================
                                         'bitrate'  '167.395'
                                        'duration'  '59'
                                          'artist'  'Imogen Heap'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "I'm A Lonely Little Petunia"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-4', "
 "'q-chart-4', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['indie', 'electronic', 'alternative', 'female vocalists', 'singer "
 "songwriter']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '135.004'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TIT2' (Title/songname/content description)         "I'm A Lonely Little Petunia"
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Imogen Heap'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'electronic', 'alternative', 'female vocalists', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.64 dB'
'TXXX:replaygain_track_peak'                        '0.442186'

========================== row from database ==========================
                                              'id'  1324140
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/2006/20060502__21 Imogen Heap - Im a Lonely Little Petunia.mp3
                                         'working'  None
                                         'bitrate'  167
                                    'duration_sec'  59
                                           'genre'  ifs-songwriter
                                        'filesize'  1255793
                                           'mtime'  1637330760
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted 2006 20060502__21 ifs songwriter
                                      'tag_artist'  Imogen Heap
                                     'tag_release'  None
                                       'tag_title'  I'm A Lonely Little Petunia
                                             'bpm'  135.004
                                    'search_title'  'a':4 'i':1 'im':3 'little':6 'lonely':5 'm':2 'petunia':7
                                   'search_artist'  'heap':2 'imogen':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '2006':3 '20060502':4 '21':5 'ifs':6 'songwriter':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':10 '2006':12 '20060502':13 '21':14 'a':4A 'heap':9B 'i':1A 'ifs':15 'im':3A 'imogen':8B 'little':6A 'lonely':5A 'm':2A 'petunia':7A 'songwriter':16 'unsorted':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'electronic', 'alternative', 'female vocalists', 'singer songwriter']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330759.5952294  (2021-11-19 15:05:59)
                             'size'  1255793