======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '281'
                                          'artist'  'Blues Traveler'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Regarding Steven (live)'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['blues rock', 'blues', 'jam band', 'alternative', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-blues'
                                             'bpm'  '92.223'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '92.223'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-blues'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Regarding Steven (live)'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Blues Traveler'
'TPE2' (Band/orchestra/accompaniment)               'Blues Traveler'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues rock', 'blues', 'jam band', 'alternative', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.51 dB'
'TXXX:replaygain_track_peak'                        '0.598444'

========================== row from database ==========================
                                              'id'  1321167
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Blues Traveler - Regarding Steven (Live) [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  281
                                           'genre'  rock-pop-early-blues
                                        'filesize'  6768640
                                           'mtime'  1620736754
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] (Live) [] rock pop early blues
                                      'tag_artist'  Blues Traveler
                                     'tag_release'  None
                                       'tag_title'  Regarding Steven (live)
                                             'bpm'  92.223
                                    'search_title'  'live':3,4 'regarding':1 'steven':2
                                   'search_artist'  'blues':1 'traveler':2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'blues':12 'early':11 'files':5,6 'live':7,8 'loose':3,4 'pop':10 'rock':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'blues':5B,18 'early':17 'files':11,12 'live':3A,4A,13,14 'loose':9,10 'pop':16 'regarding':1A 'rock':15 'steven':2A 'traveler':6B 'unsorted':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['blues rock', 'blues', 'jam band', 'alternative', 'rock']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736754.063425  (2021-05-11 14:39:14)
                             'size'  6768640