======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '231'
                                          'artist'  'Shelby Lynne'
                                     'text_people'  ''
                                         'release'  'I Am Shelby Lynne'
                                           'title'  "Where I'm From"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-4', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['lush', 'country', 'alt country', 'female vocalists', 'singer songwriter']"
                                     'discogstags'  "['blues rock', 'country rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '16'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-country'
                                             'bpm'  '85.8'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'Deluxe Edition (2014)'
'COMM:iTunNORM:eng'                                 (' 0000051F 00000495 000057A4 00004DB8 000348C0 00032820 00008003 00008124 '
 '000348C0 00031F08')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000970 0000000000A92E00 00000000 008CE740 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            'E80E7910+278026+16+150+13363+27811+42680+60343+76791+96282+112000+131024+148348+165059+184385+202048+216270+235175+266597'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '9'
'TALB' (Album/Movie/Show title)                     'I Am Shelby Lynne'
'TBPM' (BPM (beats per minute))                     '85.8'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-country'
'TDRC' (Recording time)                             '1999'
'TENC' (Encoded by)                                 'iTunes 11.4.0.18'
'TIT2' (Title/songname/content description)         "Where I'm From"
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shelby Lynne'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '9/16'
'TSSE' (Software/Hardware and settings used for encoding)  'iTunes 11.4.0.18'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['blues rock', 'country rock', 'rock']
'TXXX:lastfmtags'                                   ['lush', 'country', 'alt country', 'female vocalists', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.61 dB'
'TXXX:replaygain_track_peak'                        '0.501718'

========================== row from database ==========================
                                              'id'  1503262
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/I Am Shelby Lynne/09 Where I_m From.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  231
                                           'genre'  ifs-songwriter-country
                                        'filesize'  9769983
                                           'mtime'  1638554925
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 09 I_m ifs songwriter country
                                      'tag_artist'  Shelby Lynne
                                     'tag_release'  I Am Shelby Lynne
                                       'tag_title'  Where I'm From
                                             'bpm'  85.8
                                    'search_title'  'from':5 'i':2 'im':4 'm':3 'where':1
                                   'search_artist'  'lynne':2 'shelby':1
                                  'search_release'  'am':2 'i':1 'lynne':4 'shelby':3
                                     'search_rest'  'country':4 'exotica':2 'i':5 'ifs':7 'jazz':1 'm':6 'oldies':3 'songwriter':8
                                    'search_combo'  'am':9C 'country':15 'exotica':13 'from':5A 'i':2A,8C,16 'ifs':18 'im':4A 'jazz':12 'lynne':7B,11C 'm':3A,17 'oldies':14 'shelby':6B,10C 'songwriter':19 'where':1A
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-3', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['lush', 'country', 'alt country', 'female vocalists', 'singer songwriter']
                                        'tag_date'  1999
                                     'discogstags'  ['blues rock', 'country rock', 'rock']

============================== file details ==============================
                                           'mtime'  1638554924.9988496  (2021-12-03 19:08:44)
                             'size'  9769983