======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '213'
                                          'artist'  'Dar Williams'
                                     'text_people'  ''
                                         'release'  'Mortal City'
                                           'title'  'As Cool as I Am'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']"
                                     'discogstags'  "['pop', 'folk, world, & country', 'folk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos;ifs-songwriter-folk'
                                             'bpm'  '119.900'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mortal City'
'TBPM' (BPM (beats per minute))                     '119.900'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-eos', 'ifs-songwriter-folk']
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'As Cool as I Am'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Dar Williams'
'TRCK' (Track number/Position in set)               '1'
'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:discogstags'                                  ['pop', 'folk, world, & country', 'folk']
'TXXX:lastfmtags'                                   ['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.15 dB'
'TXXX:replaygain_track_peak'                        '0.473667'

========================== row from database ==========================
                                              'id'  197393
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Dar Williams/Mortal City/MBZ;#Dar Williams;#Mortal City;#01;#As Cool As I Am.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  213
                                           'genre'  ifs-songwriter-eos;ifs-songwriter-folk
                                        'filesize'  3426339
                                           'mtime'  1637330489
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos MBZ;#Dar Williams;#Mortal City;#01;#As ifs songwriter eos;ifs songwriter folk
                                      'tag_artist'  Dar Williams
                                     'tag_release'  Mortal City
                                       'tag_title'  As Cool as I Am
                                             'bpm'  119.9
                                    'search_title'  'am':4 'as':1 'cool':2 'i':3
                                   'search_artist'  'dar':1 'williams':2
                                  'search_release'  'city':2 'mortal':1
                                     'search_rest'  '00singer':1 '01':13,16 'as':14,17 'city':12,15 'dar':5,7 'eos':3,19,21 'folk':23 'ifs':18,20,22 'mbz':4,6 'mortal':9,11 'songwriter':2 'williams':8,10
                                    'search_combo'  '00singer':9 '01':21,24 'am':4A 'as':1A,22,25 'city':8C,20,23 'cool':2A 'dar':5B,13,15 'eos':11,27,29 'folk':31 'i':3A 'ifs':26,28,30 'mbz':12,14 'mortal':7C,17,19 'songwriter':10 'williams':6B,16,18
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'acoustic', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  1996
                                     'discogstags'  ['pop', 'folk, world, & country', 'folk']

============================== file details ==============================
                                           'mtime'  1637330488.9956481  (2021-11-19 15:01:28)
                             'size'  3426339